Just thought I'd end this month by sharing pictures I took during a public tour, held on July 17, at NASA's Jet Propulsion Laboratory (JPL) in La Cañada Flintridge, California.
Unlike previous tours that I attended over the past couple of years, there was no spacecraft like Europa Clipper or the Perseverance Mars rover currently being built inside JPL's historic Spacecraft Assembly Facility. Instead, a science instrument known as ASTHROS(Astrophysics Stratospheric Telescope for High Spectral Resolution Observations at Submillimeter-wavelengths) was being prepped for an upcoming high-altitude balloon mission that will deploy above Antarctica. The balloon that will send ASTHROS 130,000 feet (25 miles) into the stratosphere itself is pretty impressive; when fully-inflated, the helium-filled sphere will reach a diameter of 460 feet, which is about the size of Dodger Stadium here in Los Angeles!
While it's cool to see an airborne science instrument being constructed at JPL, it remains to be seen when the venerable laboratory will get to assemble a spaceborne payload (for a mission like Mars Sample Return) once again. Thanks to the loss of hundreds of laid-off employees and an uncertain NASA budget for next year thanks to Donald Trump, it may be quite a while till JPL gets to construct another robotic explorer that will venture somewhere in our Solar System.
In the meantime, JPL will just have to remain the "Center of the Universe" for current deep space missions that won't be affected by the lousy policies of a convicted felon in the White House. Carry on.
Just thought I'd end March by sharing these images of the Blue Ghost mini-brick model that I bought from Firefly Aerospace earlier this month!
As mentioned in this entry from my Human Spaceflight Blog, I planned on ordering the Blue Ghost model online if the actual lander successfully touched down on the Moon over four weeks ago. And successfully touched down Blue Ghost did!
Unlike my LEGO® Artemis 1 rocket and Perseverance Mars rover, as well as my Atom BrickNew Glenn rocket, Blue Ghost was relatively quick to build—as it 'only' consisted of 196 pieces. Just like my Artemis 1 rocket and the Percy rover, Blue Ghost is now kept dust-free inside an acrylic case that I bought online.
I initially bought a 4.2"x4.2"x4.2" glass case from a local Michaels store...but Blue Ghost barely fits inside this display. So I went to Amazon and purchased a 5"x5"x5" case, and the mini-brick lander fits perfectly in that one! (The 4.2"x4.2"x4.2" case now holds a LEGO Boba Fett figure and Grogu figurine, which you can see in the very last photo of this entry.)
Astrobotic has a mini-brick version of its Griffin lunar lander, which is scheduled to launch no earlier than this December. Just like with Blue Ghost, I intend on waiting to see the outcome of Griffin Mission One before I decide to buy something to commemorate Astrobotic's next Moon flight. Happy Monday!
NASA’s Curiosity Rover Detects Largest Organic Molecules Found on Mars (News Release - March 24)
Researchers analyzing pulverized rock onboard NASA’s Curiosity rover have found the largest organic compounds on the Red Planet to date. The finding, published on Monday in the Proceedings of the National Academy of Sciences, suggests that prebiotic chemistry may have advanced further on Mars than previously observed.
Scientists probed an existing rock sample inside Curiosity’s Sample Analysis at Mars (SAM) mini-lab and found the molecules decane, undecane and dodecane. These compounds, which are made up of 10, 11 and 12 carbons, respectively, are thought to be the fragments of fatty acids that were preserved in the sample. Fatty acids are among the organic molecules that on Earth are chemical building blocks of life.
Living things produce fatty acids to help form cell membranes and perform various other functions. But fatty acids can also be made without life, through chemical reactions triggered by various geological processes, including the interaction of water with minerals in hydrothermal vents.
While there’s no way to confirm the source of the molecules identified, finding them at all is exciting for Curiosity’s science team for a couple of reasons.
Curiosity scientists had previously discovered small, simple organic molecules on Mars, but finding these larger compounds provides the first evidence that organic chemistry advanced toward the kind of complexity required for an origin of life on Mars.
The new study also increases the chances that large organic molecules that can only be made in the presence of life, known as “biosignatures,” could be preserved on Mars, allaying concerns that such compounds get destroyed after tens of millions of years of exposure to intense radiation and oxidation.
This finding bodes well for plans to bring samples from Mars to Earth to analyze them with the most sophisticated instruments available here, the scientists say.
“Our study proves that, even today, by analyzing Mars samples we could detect chemical signatures of past life, if it ever existed on Mars,” said Caroline Freissinet, the lead study author and research scientist at the French National Centre for Scientific Research in the Laboratory for Atmospheres and Space Observations in Guyancourt, France.
In 2015, Freissinet co-led a team that, in a first, conclusively identified Martian organic molecules in the same sample that was used for the current study. Nicknamed “Cumberland,” the sample has been analyzed many times with SAM using different techniques.
Curiosity drilled the Cumberland sample in May 2013 from an area in Mars’ Gale Crater called “Yellowknife Bay.” Scientists were so intrigued by Yellowknife Bay, which looked like an ancient lakebed, that they sent the rover there before heading in the opposite direction to its primary destination of Mount Sharp, which rises from the floor of the crater.
The detour was worth it: Cumberland turns out to be jam-packed with tantalizing chemical clues to Gale Crater’s 3.7-billion-year past. Scientists have previously found the sample to be rich in clay minerals, which form in water. It has abundant sulfur, which can help preserve organic molecules.
Cumberland also has lots of nitrates, which on Earth are essential to the health of plants and animals, and methane made with a type of carbon that on Earth is associated with biological processes. Perhaps most important, scientists determined that Yellowknife Bay was indeed the site of an ancient lake, providing an environment that could concentrate organic molecules and preserve them in fine-grained sedimentary rock called mudstone.
“There is evidence that liquid water existed in Gale Crater for millions of years and probably much longer, which means there was enough time for life-forming chemistry to happen in these crater-lake environments on Mars,” said Daniel Glavin, senior scientist for sample return at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and a study co-author.
The recent organic compounds discovery was a side effect of an unrelated experiment to probe Cumberland for signs of amino acids, which are the building blocks of proteins. After heating the sample twice in SAM’s oven and then measuring the mass of the molecules released, the team saw no evidence of amino acids. But they noticed that the sample released small amounts of decane, undecane and dodecane.
Because these compounds could have broken off from larger molecules during heating, scientists worked backward to figure out what structures they may have come from. They hypothesized that these molecules were remnants of the fatty acids undecanoic acid, dodecanoic acid and tridecanoic acid, respectively.
The scientists tested their prediction in the lab, mixing undecanoic acid into a Mars-like clay and conducting a SAM-like experiment. After being heated, the undecanoic acid released decane, as predicted. The researchers then referenced experiments already published by other scientists to show that the undecane could have broken off from dodecanoic acid and dodecane from tridecanoic acid.
The authors found an additional intriguing detail in their study related to the number of carbon atoms that make up the presumed fatty acids in the sample. The backbone of each fatty acid is a long, straight chain of 11 to 13 carbons, depending on the molecule. Notably, non-biological processes typically make shorter fatty acids, with less than 12 carbons.
It’s possible that the Cumberland sample has longer-chain fatty acids, the scientists say, but SAM is not optimized to detect longer chains.
Scientists say that, ultimately, there’s a limit to how much they can infer from molecule-hunting instruments that can be sent to Mars. “We are ready to take the next big step and bring Mars samples home to our labs to settle the debate about life on Mars,” said Glavin.
NASA to Explore Two Landing Options for Returning Samples from Mars (News Release - January 7)
To maximize chances of successfully bringing the first Martian rock and sediment samples to Earth for the benefit of humanity, NASA announced on Tuesday a new approach to its Mars Sample Return Program. The agency will simultaneously pursue two landing architectures, or strategic plans, during formulation, encouraging competition and innovation, as well as cost and schedule savings.
NASA plans to later select a single path forward for the program, which aims to better understand the mysteries of the Universe, and to help determine whether the Red Planet had ever hosted life. NASA is expected to confirm the program – and its design – in the second half of 2026.
“Pursuing two potential paths forward will ensure that NASA is able to bring these samples back from Mars with significant cost and schedule saving compared to the previous plan,” said NASA Administrator Bill Nelson. “These samples have the potential to change the way we understand Mars, our Universe, and – ultimately – ourselves. I’d like to thank the team at NASA and the strategic review team, led by Dr. Maria Zuber, for their work.”
In September 2024, the agency accepted 11 studies from the NASA community and industry on how best to return Martian samples to Earth. A Mars Sample Return Strategic Review team was charged with assessing the studies and then recommending a primary architecture for the campaign, including associated cost and schedule estimates.
“NASA’s rovers are enduring Mars’ harsh environment to collect ground-breaking science samples,” said Nicky Fox, who leads NASA’s Science Mission Directorate. “We want to bring those back as quickly as possible to study them in state-of-the-art facilities. Mars Sample Return will allow scientists to understand the planet’s geological history and the evolution of climate on this barren planet where life may have existed in the past and shed light on the early Solar System before life began here on Earth. This will also prepare us to safely send the first human explorers to Mars.”
During formulation, NASA will proceed with exploring and evaluating two distinct means of landing the payload platform on Mars. The first option will leverage previously-flown entry, descent and landing system designs, namely the sky crane method, demonstrated with the Curiosity and Perseverance missions. The second option will capitalize on using new commercial capabilities to deliver the lander payload to the surface of Mars.
For both potential options, the mission’s landed platform will carry a smaller version of the Mars Ascent Vehicle. The platform’s solar panels will be replaced with a radioisotope power system that can provide power and heat through the dust storm season at Mars, allowing for reduced complexity.
The orbiting sample container will hold 30 of the sample tubes containing samples that the Perseverance rover has been collecting from the surface of Mars. A redesign of the sample loading system on the lander, which will place the samples into the orbiting sample container, simplifies the backward planetary protection implementation by eliminating the accumulation of dust on the outside of the sample container.
Both mission options rely on a capture, containment and return system aboard ESA’s (European Space Agency’s)Earth Return Orbiter to capture the orbiting sample container in Mars orbit. ESA is evaluating NASA’s plan.
NASA to Host Media Call Highlighting Mars Sample Return Update (News Release)
NASA Administrator Bill Nelson and Nicky Fox, associate administrator, Science Mission Directorate, will host a media teleconference at 1 p.m. EST on Tuesday, January 7, to provide an update on the status of the agency’s Mars Sample Return Program.
The briefing will include NASA’s efforts to complete its goals of returning scientifically-selected samples from Mars to Earth while lowering cost, risk and mission complexity.
Audio of the media call will stream live on the agency’s website.
The agency’s Mars Sample Return Program has been a major long-term goal of international planetary exploration for more than two decades. NASA’s Perseverance rover is collecting compelling science samples that will help scientists understand the geological history of Mars, the evolution of its climate, and prepare for future human explorers. The return of the samples will also help NASA’s search for signs of ancient life.
NASA’s New Deep Space Network Antenna Has Its Crowning Moment (News Release - December 20)
Deep Space Station 23’s 133-ton reflector dish was recently installed, marking a key step in strengthening NASA’s Deep Space Network.
NASA’s Deep Space Network, an array of giant radio antennas, allows agency missions to track, send commands to, and receive scientific data from spacecraft venturing to the Moon and beyond. NASA is adding a new antenna, bringing the total to 15, to support increased demand for the world’s largest and most sensitive radio frequency telecommunication system.
Installation of the latest antenna took place on December 18, when teams at NASA’s Goldstone Deep Space Communications Complex near Barstow, California, installed the metal reflector framework for Deep Space Station 23, a multifrequency beam-waveguide antenna. When operational in 2026, Deep Space Station 23 will receive transmissions from missions such as Perseverance, Psyche, Europa Clipper, Voyager 1 and a growing fleet of future human and robotic spacecraft in deep space.
“This addition to the Deep Space Network represents a crucial communication upgrade for the agency,” said Kevin Coggins, deputy associate administrator of NASA’s SCaN (Space Communications and Navigation) program. “The communications infrastructure has been in continuous operation since its creation in 1963, and with this upgrade we are ensuring NASA is ready to support the growing number of missions exploring the Moon, Mars and beyond.”
Construction of the new antenna has been under way for more than four years, and during the installation, teams used a crawler crane to lower the 133-ton metal skeleton of the 112-foot-wide (34-meter-wide) parabolic reflector before it was bolted to a 65-foot-high (20-meter-high) alidade, a platform above the antenna’s pedestal that will steer the reflector during operations.
“One of the biggest challenges facing us during the lift was to ensure that 40 bolt-holes were perfectly aligned between the structure and alidade,” said Germaine Aziz, systems engineer, Deep Space Network Aperture Enhancement Program of NASA’s Jet Propulsion Laboratory in Southern California. “This required a meticulous emphasis on alignment prior to the lift to guarantee everything went smoothly on the day.”
Following the main lift, engineers carried out a lighter lift to place a quadripod, a four-legged support structure weighing 16 1/2 tons, onto the center of the upward-facing reflector. The quadripod features a curved subreflector that will direct radio frequency signals from deep space that bounce off the main reflector into the antenna’s pedestal, where the antenna’s receivers are housed.
Engineers will now work to fit panels onto the steel skeleton to create a curved surface to reflect radio frequency signals. Once complete, Deep Space Station 23 will be the fifth of six new beam-waveguide antennas to join the network, following Deep Space Station 53, which was added at the Deep Space Network’s Madrid complex in 2022.
“With the Deep Space Network, we are able to explore the Martian landscape with our rovers, see the James Webb Space Telescope’s stunning cosmic observations, and so much more,” said Laurie Leshin, director of JPL. “The network enables over 40 deep space missions, including the farthest human-made objects in the Universe, Voyager 1 and 2. With upgrades like these, the network will continue to support humanity’s exploration of our Solar System and beyond, enabling groundbreaking science and discovery far into the future.”
NASA’s Deep Space Network is managed by JPL, with the oversight of NASA’s SCaN Program. More than 100 NASA and non-NASA missions rely on the Deep Space Network and Near Space Network, including supporting astronauts aboard the International Space Station and future Artemis missions, monitoring Earth’s weather and the effects of climate change, supporting lunar exploration, and uncovering the Solar System and beyond.
NASA’s Perseverance Rover Reaches Top of Jezero Crater Rim (News Release)
The road ahead will be even more scientifically intriguing, and probably somewhat easier-going, now that the six-wheeler has completed its long climb to the top.
NASA’s Perseverance Mars rover has crested the top of Jezero Crater’s rim at a location that the science team calls “Lookout Hill” and rolling towards its first science stop after the monthslong climb. The rover made the ascent in order to explore a region of Mars unlike anywhere it has investigated before.
Taking about 3½ months and ascending 1,640 vertical feet (500 vertical meters), the rover climbed 20% grades, making stops along the way for science observations. Perseverance’s science team shared some of their work and future plans at a media briefing held on Thursday, December 12, in Washington at the American Geophysical Union’s annual meeting, the country’s largest gathering of Earth and space scientists.
“During the Jezero Crater rim climb, our rover drivers have done an amazing job negotiating some of the toughest terrain we’ve encountered since landing,” said Steven Lee, deputy project manager for Perseverance at NASA’s Jet Propulsion Laboratory in Southern California. “They developed innovative approaches to overcome these challenges — even tried driving backward to see if it would help — and the rover has come through it all like a champ. Perseverance is ‘go’ for everything the science team wants to throw at it during this next science campaign.”
Since landing at Jezero in February 2021, Perseverance has completed four science campaigns: the “Crater Floor,” “Fan Front,” “Upper Fan” and “Margin Unit.” The science team is calling Perseverance’s fifth campaign the “Northern Rim” because its route covers the northern part of the southwestern section of Jezero’s rim. Over the first year of the Northern Rim campaign, the rover is expected to visit as many as four sites of geologic interest, take several samples, and drive about 4 miles (6.4 kilometers).
“The Northern Rim campaign brings us completely new scientific riches as Perseverance roves into fundamentally new geology,” said Ken Farley, project scientist for Perseverance at Caltech in Pasadena. “It marks our transition from rocks that partially filled Jezero Crater when it was formed by a massive impact about 3.9 billion years ago to rocks from deep down inside Mars that were thrown upward to form the crater rim after impact.”
“These rocks represent pieces of early Martian crust and are among the oldest rocks found anywhere in the Solar System. Investigating them could help us understand what Mars — and our own planet — may have looked like in the beginning,” Farley added.
First Stop: ‘Witch Hazel Hill’
With Lookout Hill in its rearview mirror, Perseverance is headed to a scientifically-significant rocky outcrop about 1,500 feet (450 meters) down the other side of the rim that the science team calls “Witch Hazel Hill.”
“The campaign starts off with a bang because Witch Hazel Hill represents over 330 feet of layered outcrop, where each layer is like a page in the book of Martian history. As we drive down the hill, we will be going back in time, investigating the ancient environments of Mars recorded in the crater rim,” said Candice Bedford, a Perseverance scientist from Purdue University in West Layfette, Indiana. “Then, after a steep descent, we take our first turns of the wheel away from the crater rim toward ‘Lac de Charmes,’ about 2 miles south.”
Lac de Charmes intrigues the science team because, being located on the plains beyond the rim, it is less likely to have been significantly affected by the formation of Jezero Crater.
After leaving Lac de Charmes, the rover will traverse about a mile (1.6 kilometers) back to the rim to investigate a stunning outcrop of large blocks known as megabreccia. These blocks may represent ancient bedrock broken up during the Isidis impact, a planet-altering event that likely excavated deep into the Martian crust as it created an impact basin some 745 miles (1,200 kilometers) wide, 3.9 billion years in the past.
NASA Performs First Aircraft Accident Investigation on Another World (News Release)
The review takes a close look at the final flight of the agency’s Ingenuity Mars Helicopter, which was the first aircraft to fly on another world.
Engineers from NASA’s Jet Propulsion Laboratory in Southern California and AeroVironment are completing a detailed assessment of the Ingenuity Mars Helicopter’s final flight on January 18, 2024, which will be published in the next few weeks as a NASA technical report. Designed as a technology demonstration to perform up to five experimental test flights over 30 days, Ingenuity was the first aircraft on another world. It operated for almost three years, performed 72 flights, and flew more than 30 times farther than planned while accumulating over two hours of flight time.
The investigation concludes that the inability of Ingenuity’s navigation system to provide accurate data during the flight likely caused a chain of events that ended the mission. The report’s findings are expected to benefit future Mars helicopters, as well as other aircraft destined to operate on other worlds.
Final Ascent
Flight 72 was planned as a brief vertical hop to assess Ingenuity’s flight systems and photograph the area. Data from the flight shows Ingenuity climbing to 40 feet (12 meters), hovering and capturing images. It initiated its descent at 19 seconds, and by 32 seconds the helicopter was back on the surface and had halted communications.
The following day, the mission reestablished communications, and images that came down six days after the flight revealed Ingenuity had sustained severe damage to its rotor blades.
What Happened
“When running an accident investigation from 100 million miles away, you don’t have any black boxes or eyewitnesses,” said Ingenuity’s first pilot, Håvard Grip of JPL. “While multiple scenarios are viable with the available data, we have one we believe is most likely: Lack of surface texture gave the navigation system too little information to work with.”
The helicopter’s vision navigation system was designed to track visual features on the surface using a downward-looking camera over well-textured (pebbly) but flat terrain. This limited tracking capability was more than sufficient for carrying out Ingenuity’s first five flights, but by Flight 72 the helicopter was in a region of Jezero Crater filled with steep, relatively featureless sand ripples.
One of the navigation system’s main requirements was to provide velocity estimates that would enable the helicopter to land within a small envelope of vertical and horizontal velocities. Data sent down during Flight 72 shows that, around 20 seconds after takeoff, the navigation system couldn’t find enough surface features to track.
Photographs taken after the flight indicate that the navigation errors created high horizontal velocities at touchdown. In the most likely scenario, the hard impact on the sand ripple’s slope caused Ingenuity to pitch and roll. The rapid attitude change resulted in loads on the fast-rotating rotor blades beyond their design limits, snapping all four of them off at their weakest point — about a third of the way from the tip.
The damaged blades caused excessive vibration in the rotor system, ripping the remainder of one blade from its root and generating an excessive power demand that resulted in loss of communications.
Down but Not Out
Although Flight 72 permanently grounded Ingenuity, the helicopter still beams weather and avionics test data to the Perseverance rover about once a week. The weather information could benefit future explorers of the Red Planet. The avionics data is already proving useful to engineers working on future designs of aircraft and other vehicles for the Red Planet.
“Because Ingenuity was designed to be affordable while demanding huge amounts of computer power, we became the first mission to fly commercial off-the-shelf cellphone processors in deep space,” said Teddy Tzanetos, Ingenuity’s project manager. “We’re now approaching four years of continuous operations, suggesting that not everything needs to be bigger, heavier and radiation-hardened to work in the harsh Martian environment.”
Inspired by Ingenuity’s longevity, NASA engineers have been testing smaller, lighter avionics that could be used in vehicle designs for the Mars Sample Return campaign. The data is also helping engineers as they research what a future Mars helicopter could look like — and do.
During a Wednesday, December 11, briefing at the American Geophysical Union’s annual meeting in Washington, Tzanetos shared details on the Mars Chopper rotorcraft, a concept that he and other Ingenuity alumni are researching. As designed, Chopper is approximately 20 times heavier than Ingenuity, could fly several pounds of science equipment, and autonomously explore remote Martian locations while traveling up to 2 miles (3 kilometers) in a day. (Ingenuity’s longest flight was 2,310 feet, or 704 meters.)
“Ingenuity has given us the confidence and data to envision the future of flight at Mars,” said Tzanetos.
NASA’s Perseverance Rover Looks Back While Climbing Slippery Slope (News Release)
On its way up the side of Jezero Crater, the agency’s latest Red Planet off-roader peers all the way back to its landing site and scopes the path ahead.
NASA’s Perseverance Mars rover is negotiating a steeply sloping route up Jezero Crater’s western wall with the aim of cresting the rim in early December. During the climb, the rover snapped not only a sweeping view of Jezero Crater’s interior, but also imagery of the tracks that it left after some wheel slippage along the way.
Stitched together from 44 frames acquired on September 27, the 1,282nd Martian day of Perseverance’s mission, the image mosaic features many landmarks and Martian firsts that have made the rover’s 3½-year exploration of Jezero so memorable, including the rover’s landing site, the spot where it first found sedimentary rocks, the location of the first sample depot on another planet, and the final airfield for NASA’s Ingenuity Mars Helicopter. The rover captured the view near a location that the team calls “Faraway Rock,” at about the halfway point in its climb up the crater wall.
“The image not only shows our past and present, but also shows the biggest challenge to getting where we want to be in the future,” said Perseverance’s deputy project manager, Rick Welch of NASA’s Jet Propulsion Laboratory in Southern California. “If you look at the right side of the mosaic, you begin to get an idea what we’re dealing with. Mars didn’t want to make it easy for anyone to get to the top of this ridge.”
Visible on the right side of the mosaic is a slope of about 20 degrees. While Perseverance has climbed 20-degree inclines before (both NASA’s Curiosity and Opportunity rovers had crested hills at least 10 degrees steeper), this is the first time it’s traveled that steep a grade on such a slippery surface.
Soft, Fluffy
During much of the climb, the rover has been driving over loosely-packed dust and sand with a thin, brittle crust. On several days, Perseverance covered only about 50% of the distance that it would have on a less slippery surface, and on one occasion, it covered just 20% of the planned route.
“Mars rovers have driven over steeper terrain, and they’ve driven over more slippery terrain, but this is the first time one had to handle both — and on this scale,” said JPL’s Camden Miller, who was a rover planner, or “driver,” for Curiosity and now serves the same role on the Perseverance mission. “For every two steps forward Perseverance takes, we were taking at least one step back. The rover planners saw this was trending toward a long, hard slog, so we got together to think up some options.”
On October 3, they sent commands for Perseverance to test strategies to reduce slippage. First, they had it drive backward up the slope (testing on Earth has shown that under certain conditions the rover’s “rocker-bogie” suspension system maintains better traction during backward driving). Then they tried cross-slope driving (switchbacking) and driving closer to the northern edge of “Summerland Trail,” the name that the mission has given to the rover’s route up the crater rim.
Data from those efforts showed that while all three approaches enhanced traction, sticking close to the slope’s northern edge proved the most beneficial. The rover planners believe the presence of larger rocks closer to the surface made the difference.
“That’s the plan right now, but we may have to change things up the road,” said Miller. “No Mars rover mission has tried to climb up a mountain this big this fast. The science team wants to get to the top of the crater rim as soon as possible because of the scientific opportunities up there. It’s up to us rover planners to figure out a way to get them there.”
Tube Status
In a few weeks, Perseverance is expected to crest the crater rim at a location that the science team calls “Lookout Hill.” From there, it will drive about another quarter-mile (450 meters) to “Witch Hazel Hill.” Orbital data shows that Witch Hazel Hill contains light-toned, layered bedrock.
The team is looking forward to comparing this new site to “Bright Angel,” the area where Perseverance recently discovered and sampled the “Cheyava Falls” rock.
The rover landed on Mars carrying 43 tubes for collecting samples from the Martian surface. So far, Perseverance has sealed and cached 24 samples of rock and regolith (broken rock and dust), plus one atmospheric sample and three witness tubes. Early in the mission’s development, NASA set the requirement for the rover to be capable of caching at least 31 samples of rock, regolith and witness tubes over the course of Perseverance’s mission at Jezero.
The project added 12 tubes, bringing the total to 43. The extras were included in anticipation of the challenging conditions found at Mars that could result in some tubes not functioning as designed.
NASA decided to retire two of the spare empty tubes because accessing them would pose a risk to the rover’s small internal robotic sample-handling arm needed for the task: A wire harness connected to the arm could catch on a fastener on the rover’s frame when reaching for the two empty sample tubes.
With those spares now retired, Perseverance currently has 11 empty tubes for sampling rock and two empty witness tubes.
Rocket Lab Awarded NASA Study Contract to Explore Bringing Rock Samples from Mars to Earth for the First Time (Press Release - October 7)
The study proposes using Rocket Lab’s vertically-integrated technologies to retrieve samples from the Red Planet for the first time in history as part of NASA’s Mars Sample Return Program.
Long Beach, California. Rocket Lab USA, Inc. (Nasdaq: RKLB) (“Rocket Lab” or “the Company”), a global leader in launch services and space systems, today announced that the Company has been selected by NASA to complete a study for retrieving rock samples from the Martian surface and bringing them to Earth for the first time. The mission would fulfill some of the highest priority Solar System exploration goals for the science community – to revolutionize humanity’s understanding of Mars, potentially answer whether life ever existed on the Martian surface, and help prepare for the first human explorers to the Red Planet.
NASA’s Rapid Mission Design Studies for Mars Sample Return solicits industry proposals to carry out rapid studies of mission designs and mission elements capable of delivering samples collected by the Mars Perseverance rover from the surface of Mars to Earth. The results of this study will inform a potential update to NASA’s Mars Sample Return Program and may result in future procurements with industry. Rocket Lab’s study will explore a simplified, end-to-end mission concept that would be delivered for a fraction of the current projected program cost and completed several years earlier than the current expected sample return date in 2040.
“Retrieving samples from Mars is one of the most ambitious and scientifically important endeavors humanity has ever embarked upon. We’ve developed an innovative mission concept to make it happen affordably and on an accelerated schedule,” said Rocket Lab founder and CEO, Sir Peter Beck. “Rocket Lab has been methodically implementing a strategy for cost-effective planetary science in recent years, making us uniquely suited to deliver a low-cost, rapid Mars Sample Return. We’ve demonstrated this strategy by delivering a NASA mission to the Moon, enabling rendezvous and proximity operations in orbit, successfully re-entering a capsule from orbit to Earth, delivering two spacecraft to NASA for a Mars mission, and much more. We look forward to bringing our proven capabilities together to deliver a compelling, innovative mission solution that puts Mars rocks in the hands of scientists sooner.”
Rocket Lab’s proposed mission architecture will be revealed once the study is complete in the coming months.
NASA’s Perseverance Rover to Begin Long Climb Up Martian Crater Rim (News Release)
After 3½ years exploring Jezero Crater’s floor and river delta, the rover will ascend to an area where it will search for more discoveries that could rewrite Mars’ history.
NASA’s Perseverance Mars rover will soon begin a months-long ascent up the western rim of Jezero Crater that is likely to include some of the steepest and most challenging terrain the rover has encountered to date. Scheduled to start the week of August 19, the climb will mark the kickoff of the mission’s new science campaign — its fifth since the rover landed in the crater on February 18, 2021.
“Perseverance has completed four science campaigns, collected 22 rock cores, and traveled over 18 unpaved miles,” said Perseverance project manager Art Thompson of NASA’s Jet Propulsion Laboratory in Southern California. “As we start the Crater Rim Campaign, our rover is in excellent condition, and the team is raring to see what’s on the roof of this place.”
Two of the priority regions the science team wants to study at the top of the crater are nicknamed “Pico Turquino” and “Witch Hazel Hill.” Imagery from NASA’s Mars orbiters indicates that Pico Turquino contains ancient fractures that may have been caused by hydrothermal activity in the distant past.
Orbital views of Witch Hazel show layered materials that likely date from a time when Mars had a very different climate than today. Those views have revealed light-toned bedrock similar to what was found at “Bright Angel,” the area where Perseverance recently discovered and sampled the “Cheyava Falls” rock, which exhibits chemical signatures and structures that could possibly have been formed by life billions of years ago when the area contained running water.
It's Sedimentary
During the river delta exploration phase of the mission, the rover collected the only sedimentary rock ever sampled from a planet other than Earth. Sedimentary rocks are important because they form when particles of various sizes are transported by water and deposited into a standing body of water; on Earth, liquid water is one of the most important requirements for life as we know it.
A study published on Wednesday, August 14, in AGU Advances chronicles the 10 rock cores gathered from sedimentary rocks in an ancient Martian delta, a fan-shaped collection of rocks and sediment that formed billions of years ago at the convergence of a river and a crater lake.
The core samples collected at the fan front are the oldest, whereas the rocks cored at the fan top are likely the youngest, produced when flowing water deposited sediment in the western fan.
“Among these rock cores are likely the oldest materials sampled from any known environment that was potentially habitable,” said Tanja Bosak, a geobiologist at the Massachusetts Institute of Technology in Cambridge and member of Perseverance’s science team. “When we bring them back to Earth, they can tell us so much about when, why and for how long Mars contained liquid water and whether some organic, prebiotic and potentially even biological evolution may have taken place on that planet.”
Onward to the Crater Rim
As scientifically intriguing as the samples have been so far, the mission expects many more discoveries to come.
“Our samples are already an incredibly scientifically compelling collection, but the crater rim promises to provide even more samples that will have significant implications for our understanding of Martian geologic history,” said Eleni Ravanis, a University of Hawaiì at Mānoa scientist on Perseverance’s Mastcam-Z instrument team and one of the Crater Rim Campaign science leads. “This is because we expect to investigate rocks from the most ancient crust of Mars. These rocks formed from a wealth of different processes, and some represent potentially habitable ancient environments that have never been examined up-close before.”
Reaching the top of the crater won’t be easy. To get there, Perseverance will rely on its auto-navigation capabilities as it follows a route that rover planners designed to minimize hazards while still giving the science team plenty to investigate. Encountering slopes of up to 23 degrees on the journey (rover drivers avoid terrain that would tilt Perseverance more than 30 degrees), the rover will have gained about 1,000 feet (300 meters) in elevation by the time it summits the crater’s rim at a location that the science team has dubbed “Aurora Park.”
Then, perched hundreds of meters above a crater floor stretching 28 miles (45 kilometers) across, Perseverance can begin the next leg of its adventure.
NASA Exploring Alternative Mars Sample Return Methods (Press Release)
NASA is moving forward with ten studies to examine more affordable and faster methods of bringing samples from Mars’ surface back to Earth as part of the agency’s Mars Sample Return Program. As part of this effort, NASA will award a firm-fixed-price contract for up to $1.5 million to conduct 90-day studies to seven industry proposers.
Additionally, NASA centers, Caltech’s Jet Propulsion Laboratory and Johns Hopkins’ Applied Physics Laboratory are producing studies. Once completed, NASA will assess all studies to consider alterations or enhancements to the Mars Sample Return architecture.
“Mars Sample Return will be one of the most complex missions NASA has undertaken, and it is critical that we carry it out more quickly, with less risk, and at a lower cost,” said Nelson. “I’m excited to see the vision that these companies, centers and partners present as we look for fresh, exciting and innovative ideas to uncover great cosmic secrets from the Red Planet.”
Over the last quarter century, NASA has engaged in a systematic effort to determine the early history of Mars and how it can help us understand the formation and evolution of habitable worlds, including Earth. As part of that effort, Mars Sample Return has been a long-term goal of international planetary exploration for the past two decades.
NASA’s Perseverance rover has been collecting samples for later collection and return to Earth since it landed on Mars in 2021.
The following companies and proposals were selected from among those that responded to an April 15 request for proposals:
- Lockheed Martin in Littleton, Colorado: Lockheed Martin Rapid Mission Design Studies for Mars Sample Return
- SpaceX in Hawthorne, California: Enabling Mars Sample Return With Starship
- Aerojet Rocketdyne in Huntsville, Alabama: A High-Performance Liquid Mars Ascent Vehicle, Using Highly Reliable and Mature Propulsion Technologies, to Improve Program Affordability and Schedule
- Blue Origin in Monrovia, California: Leveraging Artemis for Mars Sample Return
- Quantum Space, in Rockville, Maryland: Quantum Anchor Leg Mars Sample Return Study
- Northrop Grumman in Elkton, Maryland: High TRL MAV Propulsion Trades and Concept Design for MSR Rapid Mission Design
- Whittinghill Aerospace in Camarillo, California: A Rapid Design Study for the MSR Single Stage Mars Ascent Vehicle”
NASA’s Mars Sample Return is a strategic partnership with ESA (the European Space Agency). Returning scientifically-selected samples to Earth for study using the most sophisticated instruments around the world can revolutionize our understanding of Mars and would fulfill one of the highest-priority solar system exploration goals as identified by the National Academies of Science, Engineering and Medicine.
NASA Sets Path to Return Mars Samples, Seeks Innovative Designs (Press Release)
NASA Administrator Bill Nelson shared on Monday the agency’s path forward on the Mars Sample Return program, including seeking innovative designs to return valuable samples from Mars to Earth. Such samples will not only help us understand the formation and evolution of our solar system but can be used to prepare for future human explorers and to aid in NASA’s search for signs of ancient life.
Over the last quarter century, NASA has engaged in a systematic effort to determine the early history of Mars and how it can help us understand the formation and evolution of habitable worlds, including Earth. As part of that effort, Mars Sample Return has been a long-term goal of international planetary exploration for the past two decades.
NASA’s Perseverance rover has been collecting samples for later collection and return to Earth since it landed on Mars in 2021.
“Mars Sample Return will be one of the most complex missions NASA has ever undertaken. The bottom line is, an $11 billion budget is too expensive, and a 2040 return date is too far away,” said Nelson. “Safely landing and collecting the samples, launching a rocket with the samples off another planet – which has never been done before – and safely transporting the samples more than 33 million miles back to Earth is no small task. We need to look outside the box to find a way ahead that is both affordable and returns samples in a reasonable timeframe.”
The agency has also released NASA’s response to a Mars Sample Return Independent Review Board report from September 2023. This includes: an updated mission design with reduced complexity; improved resiliency; risk posture; stronger accountability and coordination; and an overall budget likely in the $8 billion to $11 billion range.
Given the Fiscal Year 2025 budget and anticipated budget constraints, as well as the need to maintain a balanced science portfolio, the current mission design will return samples in 2040.
To achieve the ambitious goal of returning the key samples to Earth earlier and at a lower cost, the agency is asking the NASA community to work together to develop a revised plan that leverages innovation and proven technology. Additionally, NASA will soon solicit architecture proposals from industry that could return samples in the 2030s, and lowers cost, risk and mission complexity.
“NASA does visionary science – and returning diverse, scientifically-relevant samples from Mars is a key priority,” said Nicky Fox, associate administrator, Science Mission Directorate, at NASA Headquarters in Washington. “To organize a mission at this level of complexity, we employ decades of lessons on how to run a large mission, including incorporating the input we get from conducting independent reviews. Our next steps will position us to bring this transformational mission forward and deliver revolutionary science from Mars -- providing critical new insights into the origins and evolution of Mars, our solar system, and life on Earth.”
After Three Years on Mars, NASA’s Ingenuity Helicopter Mission Ends (Press Release)
NASA’s history-making Ingenuity Mars Helicopter has ended its mission at the Red Planet after surpassing expectations and making dozens more flights than planned. While the helicopter remains upright and in communication with ground controllers, imagery of its January 18 flight sent to Earth this week indicates that one or more of its rotor blades sustained damage during landing, and it is no longer capable of flight.
Originally designed as a technology demonstration to perform up to five experimental test flights over 30 days, the first aircraft on another world operated from the Martian surface for almost three years, performed 72 flights, and flew more than 14 times farther than planned while logging more than two hours of total flight time.
“The historic journey of Ingenuity, the first aircraft on another planet, has come to end,” said NASA Administrator Bill Nelson. “That remarkable helicopter flew higher and farther than we ever imagined and helped NASA do what we do best – make the impossible, possible. Through missions like Ingenuity, NASA is paving the way for future flight in our solar system and smarter, safer human exploration to Mars and beyond.”
NASA to Discuss Ingenuity Mission in Media Call Today
In addition to video comments shared from Nelson about the mission’s conclusion, NASA will host a media teleconference at 5 p.m. EST today, Thursday, January 25, to provide an update on the Ingenuity Mars Helicopter.
Audio of the call will stream live on the agency’s website.
Participants in the call are expected to include:
- Lori Glaze, director, Planetary Science Division, NASA’s Science Mission Directorate at the agency’s headquarters in Washington
- Laurie Leshin, director, NASA’s Jet Propulsion Laboratory in Southern California
- Teddy Tzanetos, Ingenuity project manager, NASA JPL
Media who wish to participate by phone can request dial-in information by emailing hq-media@mail.nasa.gov.
Ingenuity landed on Mars February 18, 2021, attached to the belly of NASA’s Perseverance rover and first lifted off the Martian surface on April 19, proving that powered, controlled flight on Mars was possible. After notching another four flights, it embarked on a new mission as an operations demonstration, serving as an aerial scout for Perseverance scientists and rover drivers.
In 2023, the helicopter executed two successful flight tests that further expanded the team’s knowledge of its aerodynamic limits.
“At NASA JPL, innovation is at the heart of what we do,” said Leshin. “Ingenuity is an exemplar of the way we push the boundaries of what’s possible every day. I’m incredibly proud of our team behind this historic technological achievement and eager to see what they’ll invent next.”
Ingenuity’s team planned for the helicopter to make a short vertical flight on January 18 to determine its location after executing an emergency landing on its previous flight. Data shows that, as planned, the helicopter achieved a maximum altitude of 40 feet (12 meters) and hovered for 4.5 seconds before starting its descent at a velocity of 3.3 feet per second (1 meter per second).
However, about 3 feet (1 meter) above the surface, Ingenuity lost contact with the rover, which serves as a communications relay for the rotorcraft. The following day, communications were reestablished and more information about the flight was relayed to ground controllers at NASA JPL.
Imagery revealing damage to the rotor blade arrived several days later. The cause of the communications dropout and the helicopter’s orientation at time of touchdown are still being investigated.
Triumphs, Challenges
Over an extended mission that lasted for almost 1,000 Martian days, more than 33 times longer than originally planned, Ingenuity was upgraded with the ability to autonomously choose landing sites in treacherous terrain, dealt with a dead sensor, cleaned itself after dust storms, operated from 48 different airfields, performed three emergency landings, and survived a frigid Martian winter.
Designed to operate in spring, Ingenuity was unable to power its heaters throughout the night during the coldest parts of winter, resulting in the flight computer periodically freezing and resetting. These power “brownouts” required the team to redesign Ingenuity’s winter operations in order to keep flying.
With flight operations now concluded, the Ingenuity team will perform final tests on helicopter systems and download the remaining imagery and data in Ingenuity's onboard memory. The Perseverance rover is currently too far away to attempt to image the helicopter at its final airfield.
“It’s humbling Ingenuity not only carries onboard a swatch from the original Wright Flyer, but also this helicopter followed in its footsteps and proved flight is possible on another world,” said Ingenuity’s project manager, Teddy Tzanetos of NASA JPL. “The Mars helicopter would have never flown once, much less 72 times, if it were not for the passion and dedication of the Ingenuity and Perseverance teams. History’s first Mars helicopter will leave behind an indelible mark on the future of space exploration and will inspire fleets of aircraft on Mars – and other worlds – for decades to come.”
As promised in this Blog entry last month, here are photos of my LEGO® Perseverance Mars rover and Ingenuity Mars helicopter now protected by a large acrylic case that I bought online!
The glass box is slightly wider than the bookshelf that Percy and Ginny are displayed on, so I covered those bottom gaps with Scotch™ tape to help prevent dust from getting in.
NASA Invites Public to Send Names Aboard Artemis Robotic Moon Rover (Press Release)
NASA is inviting people to send their names to the surface of the Moon aboard the agency’s first robotic lunar rover, VIPER – short for Volatiles Investigating Polar Exploration Rover. The rover will embark on a mission to the lunar South Pole to unravel the mysteries of the Moon’s water and better understand the environment where NASA plans to land the first woman and first person of color under its Artemis program.
As part of the Send Your Name with VIPER campaign, NASA will accept names received before 11:59 p.m. EST on March 15. Once collected, the agency will take the names and attach them to the rover.
The site also enables participants to create and download a virtual souvenir – a boarding pass to the VIPER mission featuring their name – to commemorate the experience. Participants are encouraged to share their requests on social media using the hashtag #SendYourName.
“With VIPER, we are going to study and explore parts of the Moon’s surface no one has ever been to before – and with this campaign, we are inviting the world to be part of that risky yet rewarding journey,” said Nicola Fox, associate administrator, Science Mission Directorate at NASA Headquarters in Washington. “Just think: Our names will ride along as VIPER navigates across the rugged terrain of the lunar South Pole and gathers valuable data that will help us better understand the history of the Moon and the environment where we plan to send Artemis astronauts.”
This campaign is like other NASA projects that have enabled tens of millions of people to send their names to ride along with Artemis I, several Mars spacecraft, and the agency’s upcoming Europa Clipper mission. It draws from the agency’s long tradition of shipping inspirational messages on spacecraft that have explored our solar system and beyond.
“Our VIPER is a game-changer,” said Daniel Andrews, VIPER’s project manager at NASA’s Ames Research Center in California’s Silicon Valley. “It’s the first mission of its kind, expanding our understanding of where lunar resources could be harvested to support a long-term human presence on the Moon.”
In late 2024, Astrobotic Technologies’ Griffin Mission One is scheduled to deliver VIPER to the lunar surface after launching aboard a SpaceX Falcon Heavy rocket from Cape Canaveral Space Force Station in Florida. Once there, VIPER will rely on its solar panels and batteries for its roughly 100-day mission to survive extreme temperatures and challenging lighting conditions, while powering a suite of science instruments designed to gather data about the characteristics and concentrations of lunar ice and other possible resources.
NASA’s VIPER delivery is part of its CLPS (Commercial Lunar Payload Services) initiative under the Artemis program. With CLPS, as well as with human exploration near the lunar South Pole, NASA will establish a long-term cadence of Moon missions in preparation for sending the first astronauts to Mars.
The rover is part of the LDEP (Lunar Discovery and Exploration Program), managed by the Science Mission Directorate at the agency’s headquarters and is executed through the Exploration Science Strategy and Integration Office. In addition to managing the mission, NASA Ames leads the mission’s science, systems engineering, real-time rover surface operations and flight software.
The rover hardware is designed and built by NASA’s Johnson Space Center in Houston, while the instruments are provided by NASA Ames, the agency’s Kennedy Space Center in Florida, and commercial partner Honeybee Robotics in Altadena, California.
NASA One Step Closer to Fueling Space Missions with Plutonium-238 (News Release)
The recent shipment of heat source plutonium-238 from the U.S. Department of Energy’s (DOE’s) Oak Ridge National Laboratory to its Los Alamos National Laboratory is a critical step toward fueling planned NASA missions with radioisotope power systems.
This shipment of 0.5 kilograms (a little over 1 pound) of new heat source plutonium oxide is the largest since the domestic restart of plutonium-238 production over a decade ago. It marks a significant milestone toward achieving the constant rate production average target of 1.5 kilograms per year by 2026.
Radioisotope power systems, or RPS, enable exploration of some of the deepest, darkest and most distant destinations in the solar system and beyond. RPS use the natural decay of the radioisotope plutonium-238 to provide heat to a spacecraft in the form of a Light Weight Radioisotope Heater Unit (LWRHU), or heat and electricity in the form of a system such as the Multi-Mission Radioisotope Thermoelectric Generator (MMRTG, shown above).
The DOE has produced the heat source plutonium oxide required to fuel the RPS for missions such as NASA’s Mars 2020. The first spacecraft to benefit from this restart, the Perseverance rover, carries some of the new plutonium produced by DOE.
An MMRTG continuously provides the car-sized rover with heat and about 110 watts of electricity, enabling the exploration of the Martian surface and gathering of soil samples for possible retrieval.
“NASA’s Radioisotope Power Systems Program works in partnership with the Department of Energy to enable missions to operate in some of the most extreme environments in our solar system and interstellar space,” said Carl Sandifer, RPS program manager at NASA’s Glenn Research Center in Cleveland.
For over sixty years, the United States has employed radioisotope-based electrical power systems and heater units in space. Three dozen missions have explored space for decades using the reliable electricity and heat provided by RPS.
NASA and DOE are continuing their long-standing partnership to ensure that the nation can enable future missions requiring radioisotopes for decades to come.
The fact that @NASA is on track to receive 1.5 kg of Plutonium-238 annually from @ENERGY (starting as early as 2026) is promising news for @JHUAPL's Interstellar Probe...which will hopefully be recommended for development in this year's Heliophysics Decadal Survey by @theNASEM. pic.twitter.com/JmmMmclbFN
Happy New Year's Eve, everyone! Just thought I'd share these pictures I took of the LEGO® Perseverance Mars rover and Ingenuity Mars helicopter that one of my brothers got me for this Christmas!
It took me less than two days to build Percy and Ginny(which combined consisted of over 1,100 LEGO pieces), and they're now proudly displayed at my home. As you can see, Percy barely fits on top of a bookshelf!
I bought a large acrylic box online that I plan to place Percy and Ginny inside once it arrives at my house. I'll post an image of the two LEGO spacecraft inside the case once they are put on display.
