Wednesday, March 30, 2022

Meet Earendel: Webb's Predecessor Makes an Awesome New Astronomical Discovery...

An annotated Hubble Space Telescope image showing Earendel's location in space...12.9 billion light-years away.
Science: NASA, ESA, Brian Welch (JHU), Dan Coe (STScI); Image processing: NASA, ESA, Alyssa Pagan (STScI)

Record Broken: Hubble Spots Farthest Star Ever Seen (News Release)

NASA’s Hubble Space Telescope has established an extraordinary new benchmark: detecting the light of a star that existed within the first billion years after the universe’s birth in the Big Bang – the farthest individual star ever seen to date.

The find is a huge leap further back in time from the previous single-star record holder; detected by Hubble in 2018. That star existed when the universe was about 4 billion years-old, or 30 percent of its current age, at a time that astronomers refer to as “redshift 1.5.” Scientists use the word “redshift” because as the universe expands, light from distant objects is stretched or “shifted” to longer, redder wavelengths as it travels toward us.

The newly-detected star is so far away that its light has taken 12.9 billion years to reach Earth, appearing to us as it did when the universe was only 7 percent of its current age, at redshift 6.2. The smallest objects previously seen at such a great distance are clusters of stars, embedded inside early galaxies.

“We almost didn’t believe it at first, it was so much farther than the previous most-distant, highest redshift star,” said astronomer Brian Welch of the Johns Hopkins University in Baltimore, lead author of the paper describing the discovery, which is published in the March 30 journal Nature. The discovery was made from data collected during Hubble’s RELICS (Reionization Lensing Cluster Survey) program, led by co-author Dan Coe at the Space Telescope Science Institute (STScI), also in Baltimore.

“Normally at these distances, entire galaxies look like small smudges, with the light from millions of stars blending together,” said Welch. “The galaxy hosting this star has been magnified and distorted by gravitational lensing into a long crescent that we named the Sunrise Arc.”

After studying the galaxy in detail, Welch determined that one feature is an extremely magnified star that he called Earendel, which means “morning star” in Old English. The discovery holds promise for opening up an uncharted era of very early star formation.

“Earendel existed so long ago that it may not have had all the same raw materials as the stars around us today,” Welch explained. “Studying Earendel will be a window into an era of the universe that we are unfamiliar with, but that led to everything we do know. It’s like we’ve been reading a really interesting book, but we started with the second chapter, and now we will have a chance to see how it all got started,” Welch said.

When Stars Align

The research team estimates that Earendel is at least 50 times the mass of our Sun and millions of times as bright, rivaling the most massive stars known. But even such a brilliant, very high-mass star would be impossible to see at such a great distance without the aid of natural magnification by a huge galaxy cluster, WHL0137-08, sitting between us and Earendel. The mass of the galaxy cluster warps the fabric of space, creating a powerful natural magnifying glass that distorts and greatly amplifies the light from distant objects behind it.

Thanks to the rare alignment with the magnifying galaxy cluster, the star Earendel appears directly on, or extremely close to, a ripple in the fabric of space. This ripple, which is defined in optics as a “caustic,” provides maximum magnification and brightening. The effect is analogous to the rippled surface of a swimming pool creating patterns of bright light on the bottom of the pool on a sunny day. The ripples on the surface act as lenses and focus sunlight to maximum brightness on the pool floor.

This caustic causes the star Earendel to pop out from the general glow of its home galaxy. Its brightness is magnified a thousandfold or more. At this point, astronomers are not able to determine if Earendel is a binary star, though most massive stars have at least one smaller companion star.

Confirmation with Webb

Astronomers expect that Earendel will remain highly magnified for years to come. It will be observed by NASA’s James Webb Space Telescope. Webb’s high sensitivity to infrared light is needed to learn more about Earendel, because its light is stretched (redshifted) to longer infrared wavelengths due to the universe’s expansion.

“With Webb we expect to confirm Earendel is indeed a star, as well as measure its brightness and temperature,” Coe said. These details will narrow down its type and stage in the stellar lifecycle. "We also expect to find the Sunrise Arc galaxy is lacking in heavy elements that form in subsequent generations of stars. This would suggest Earendel is a rare, massive metal-poor star,” Coe said.

Earendel’s composition will be of great interest for astronomers, because it formed before the universe was filled with the heavy elements produced by successive generations of massive stars. If follow-up studies find that Earendel is only made up of primordial hydrogen and helium, it would be the first evidence for the legendary Population III stars, which are hypothesized to be the very first stars born after the Big Bang. While the probability is small, Welch admits it is enticing all the same.

“With Webb, we may see stars even farther than Earendel, which would be incredibly exciting,” Welch said. “We’ll go as far back as we can. I would love to see Webb break Earendel’s distance record.”

The Hubble Space Telescope is a project of international cooperation between NASA and ESA (European Space Agency). NASA’s Goddard Space Flight Center in Greenbelt, Maryland, manages the telescope. The Space Telescope Science Institute (STScI) in Baltimore, Maryland, conducts Hubble science operations. STScI is operated for NASA by the Association of Universities for Research in Astronomy in Washington, D.C.

Source: NASA.Gov

****

Monday, March 28, 2022

Photos of the Day: Viewing SLS in Person!

At Canaveral National Seashore with NASA's Space Launch System rocket sitting on Kennedy Space Center's Pad 39B behind me...on March 27, 2022.

Several hours ago, I returned home to Los Angeles after taking a 4-day trip to Florida...during which I viewed NASA's Space Launch System (SLS) rocket in person at Kennedy Space Center's Pad 39B!

I will soon post an entry in my Human Spaceflight Blog with photos taken throughout my brief Space Coast vacation (including images of orbiter Atlantis inside her exhibit, as well as an unflown Delta 2 vehicle at the Kennedy Space Center Visitor Complex).

In the main time, enjoy these pictures of NASA's mega-Moon rocket as it remains on track for a wet dress rehearsal—SLS's final major test before launch on the Artemis 1 mission within the next 3 months—that's scheduled for this Sunday, April 3.

I used my Nikon D3300 camera to shoot these photos. Stay tuned for more!

EDIT (March 29): You can view more images from my trip below!

LINK: Additional photos I took at Cape Canaveral on March 25-27

An image I took of NASA's Space Launch System rocket from the Apollo/Saturn V Center...on March 27, 2022.

An image I took of NASA's Space Launch System rocket [as well as Pad 39A (at left) that's currently being used by SpaceX] from Playalinda Beach...on March 26, 2022.

An image I took of NASA's Space Launch System rocket from Playalinda Beach Road Vista 5...on March 26, 2022.

Tuesday, March 22, 2022

THE BROKEN TABLE Is An Official Selection At The DOGE FILM FESTIVAL!

THE BROKEN TABLE is an Official Selection in Season 2 of the Doge Film Festival!

I'm so thrilled to announce that my short film The Broken Table is headed to another screening event...this time the Doge Film Festival! In case you're wondering, this festival is indeed named after the meme coin made famous by such celebrities as Elon Musk and Dallas Mavericks owner Mark Cuban.

The Doge Film Festival is an online event that is based in New York City. The winner of this competition, which is scheduled to occur on June 30, will supposedly be awarded with Dogecoins!

All I can say is— I'll totally submit The Broken Table to a Shiba Inu Film Festival or Saitama Film Festival if these tokens sponsored such an event! But not an Ethereum Film Festival; I wouldn't be surprised if the submission fee and tickets to this event were as ridiculously expensive as the Ethereum gas fees you pay when you purchase Shiba Inu, Saitama or other coins like SHINJA directly on this blockchain.

Happy Tuesday!

Monday, March 21, 2022

The Tally of Alien Worlds in Our Galaxy Has Reached a New Record Today...

An artist's concept of different exoplanets in our galaxy.
NASA / JPL - Caltech

Cosmic Milestone: NASA Confirms 5,000 Exoplanets (News Release)

The count of confirmed exoplanets just ticked past the 5,000 mark, representing a 30-year journey of discovery led by NASA space telescopes.

Not so long ago, we lived in a universe with only a small number of known planets, all of them orbiting our Sun. But a new raft of discoveries marks a scientific high point: More than 5,000 planets are now confirmed to exist beyond our solar system.

The planetary odometer turned on March 21, with the latest batch of 65 exoplanets – planets outside our immediate solar family – added to the NASA Exoplanet Archive. The archive records exoplanet discoveries that appear in peer-reviewed, scientific papers, and that have been confirmed using multiple detection methods or by analytical techniques.

The 5,000-plus planets found so far include small, rocky worlds like Earth, gas giants many times larger than Jupiter, and “hot Jupiters” in scorchingly close orbits around their stars. There are “super-Earths,” which are possible rocky worlds bigger than our own, and “mini-Neptunes,” smaller versions of our system’s Neptune. Add to the mix planets orbiting two stars at once and planets stubbornly orbiting the collapsed remnants of dead stars.

“It’s not just a number,” said Jessie Christiansen, science lead for the archive and a research scientist with the NASA Exoplanet Science Institute at Caltech in Pasadena. “Each one of them is a new world, a brand-new planet. I get excited about every one because we don’t know anything about them.”

We do know this: Our galaxy likely holds hundreds of billions of such planets. The steady drumbeat of discovery began in 1992 with strange new worlds orbiting an even stranger star. It was a type of neutron star known as a pulsar, a rapidly-spinning stellar corpse that pulses with millisecond bursts of searing radiation. Measuring slight changes in the timing of the pulses allowed scientists to reveal planets in orbit around the pulsar.

Finding just three planets around this spinning star essentially opened the floodgates, said Alexander Wolszczan, the lead author on the paper that, 30 years ago, unveiled the first planets to be confirmed outside our solar system.

“If you can find planets around a neutron star, planets have to be basically everywhere,” Wolszczan said. “The planet-production process has to be very robust.”

Wolszczan, who still searches for exoplanets as a professor at Penn State, says we’re opening an era of discovery that will go beyond simply adding new planets to the list. The Transiting Exoplanet Survey Satellite (TESS), launched in 2018, continues to make new exoplanet discoveries. But soon powerful next-generation telescopes and their highly-sensitive instruments, starting with the recently-launched James Webb Space Telescope, will capture light from the atmospheres of exoplanets, reading which gases are present to potentially identify tell-tale signs of habitable conditions.

The Nancy Grace Roman Space Telescope, expected to launch in 2027, will make new exoplanet discoveries using a variety of methods. The ESA (European Space Agency) mission ARIEL, launching in 2029, will observe exoplanet atmospheres; a piece of NASA technology aboard, called CASE, will help zero in on exoplanet clouds and hazes.

“To my thinking, it is inevitable that we’ll find some kind of life somewhere – most likely of some primitive kind,” Wolszczan said. The close connection between the chemistry of life on Earth and chemistry found throughout the universe, as well as the detection of widespread organic molecules, suggests detection of life itself is only a matter of time, he added.

How to Find Other Worlds

The picture didn’t always look so bright. The first planet detected around a Sun-like star, in 1995, turned out to be a hot Jupiter: a gas giant about half the mass of our own Jupiter in an extremely close, four-day orbit around its star. A year on this planet, in other words, lasts only four days.

More such planets appeared in the data from ground-based telescopes once astronomers learned to recognize them – first dozens, then hundreds. They were found using the “wobble” method: tracking slight back-and-forth motions of a star, caused by gravitational tugs from orbiting planets. But still, nothing looked likely to be habitable.

Finding small, rocky worlds more like our own required the next big leap in exoplanet-hunting technology: the “transit” method. Astronomer William Borucki came up with the idea of attaching extremely sensitive light detectors to a telescope, then launching it into space. The telescope would stare for years at a field of more than 170,000 stars, searching for tiny dips in starlight when a planet crossed a star’s face.

That idea was realized in the Kepler Space Telescope.

Borucki, principal investigator of the now-retired Kepler mission, says its launch in 2009 opened a new window on the universe.

“I get a real feeling of satisfaction, and really of awe at what’s out there,” he said. “None of us expected this enormous variety of planetary systems and stars. It’s just amazing.”

Source: Jet Propulsion Laboratory

****

Wednesday, March 16, 2022

Hubble's Successor Gives Us a Preview of What to Expect Once It Officially Begins Observing the Cosmos This Summer...

An image of the Webb Telescope's target star 2MASS J17554042+6551277...which was obtained by the spacecraft's NIRCam instrument using a red filter to optimize visual contrast.
NASA / STScI

NASA’s Webb Reaches Alignment Milestone, Optics Working Successfully (Press Release)

Following the completion of critical mirror-alignment steps, NASA’s James Webb Space Telescope team expects that Webb’s optical performance will be able to meet or exceed the science goals the observatory was built to achieve.

On March 11, the Webb team completed the stage of alignment known as “fine phasing.” At this key stage in the commissioning of Webb’s Optical Telescope Element, every optical parameter that has been checked and tested is performing at, or above, expectations. The team also found no critical issues and no measurable contamination or blockages to Webb’s optical path. The observatory is able to successfully gather light from distant objects and deliver it to its instruments without issue.

Although there are months to go before Webb ultimately delivers its new view of the cosmos, achieving this milestone means the team is confident that Webb’s first-of-its-kind optical system is working as well as possible.

“More than 20 years ago, the Webb team set out to build the most powerful telescope that anyone has ever put in space and came up with an audacious optical design to meet demanding science goals,” said Thomas Zurbuchen, associate administrator for NASA’s Science Mission Directorate in Washington. “Today we can say that design is going to deliver.”

While some of the largest ground-based telescopes on Earth use segmented primary mirrors, Webb is the first telescope in space to use such a design. The 21-foot, 4-inch (6.5-meter) primary mirror – much too big to fit inside a rocket fairing – is made up of 18 hexagonal, beryllium mirror segments. It had to be folded up for launch and then unfolded in space before each mirror was adjusted – to within nanometers – to form a single mirror surface.

“In addition to enabling the incredible science that Webb will achieve, the teams that designed, built, tested, launched, and now operate this observatory have pioneered a new way to build space telescopes,” said Lee Feinberg, Webb optical telescope element manager at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.

With the fine phasing stage of the telescope’s alignment complete, the team has now fully aligned Webb’s primary imager, the Near-Infrared Camera, to the observatory’s mirrors.

“We have fully aligned and focused the telescope on a star, and the performance is beating specifications. We are excited about what this means for science,” said Ritva Keski-Kuha, deputy optical telescope element manager for Webb at NASA Goddard. “We now know we have built the right telescope.”

Over the next six weeks, the team will proceed through the remaining alignment steps before final science instrument preparations. The team will further align the telescope to include the Near-Infrared Spectrograph, Mid-Infrared Instrument, and Near InfraRed Imager and Slitless Spectrograph. In this phase of the process, an algorithm will evaluate the performance of each instrument and then calculate the final corrections needed to achieve a well-aligned telescope across all science instruments. Following this, Webb’s final alignment step will begin, and the team will adjust any small, residual positioning errors in the mirror segments.

The team is on track to conclude all aspects of Optical Telescope Element alignment by early May, if not sooner, before moving on to approximately two months of science instrument preparations. Webb’s first full-resolution imagery and science data will be released in the summer.

Webb is the world's premier space science observatory and once fully operational, will help solve mysteries in our solar system, look beyond to distant worlds around other stars, and probe the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners at ESA (European Space Agency) and the Canadian Space Agency.

****

Another 'selfie' of the Webb Telescope's primary mirror...which was taken using a specialized pupil imaging lens inside the spacecraft's NIRCam instrument.
NASA / STScI

Tuesday, March 15, 2022

The Mars Helicopter Will Continue to Soar Across Jezero Crater Till Late Summer...

A screenshot of the Ingenuity Mars Helicopter from a video that was taken by Perseverance using the rover's Mastcam-Z instrument...on April 8, 2021.
NASA / JPL - Caltech / ASU

NASA Extends Ingenuity Helicopter Mission (News Release)

With its recent 21st flight complete, the Red Planet rotorcraft is on its way to setting more records during its second year of operations.

NASA has extended flight operations of the Ingenuity Mars Helicopter through September. In the months ahead, history’s first aircraft to operate from the surface of another world will support the Perseverance rover’s upcoming science campaign exploring the ancient river delta of Jezero Crater. Along the way, it will continue testing its own capabilities to support the design of future Mars air vehicles.

The announcement comes on the heels of the rotorcraft’s 21st successful flight, the first of at least three needed for the helicopter to cross the northwest portion of a region known as “Séítah” and reach its next staging area.

“Less than a year ago we didn’t even know if powered, controlled flight of an aircraft at Mars was possible,” said Thomas Zurbuchen, the associate administrator of NASA’s Science Mission Directorate. “Now, we are looking forward to Ingenuity’s involvement in Perseverance’s second science campaign. Such a transformation of mindset in such a short period is simply amazing, and one of the most historic in the annals of air and space exploration.”

Ingenuity’s new area of operations is entirely different from the modest, relatively flat terrain it has been flying over since its first flight last April. Several miles wide and formed by an ancient river, the fan-shaped delta rises more than 130 feet (40 meters) above the crater floor. Filled with jagged cliffs, angled surfaces, projecting boulders, and sand-filled pockets that could stop a rover in its tracks (or upend a helicopter upon landing), the delta promises to hold numerous geologic revelations – perhaps even the proof necessary to determine that microscopic life once existed on Mars billions of years ago.

Upon reaching the delta, Ingenuity’s first orders will be to help determine which of two dry river channels Perseverance should take when it’s time to climb to the top of the delta. Along with routing assistance, data provided by the helicopter will help the Perseverance team assess potential science targets. Ingenuity may even be called upon to image geologic features too far afield (or outside of the rover’s traversable zone), or perhaps scout landing zones and caching sites for the Mars Sample Return program.

“The Jezero river delta campaign will be the biggest challenge the Ingenuity team faces since first flight at Mars,” said Teddy Tzanetos, Ingenuity team lead at NASA’s Jet Propulsion Laboratory in Southern California. “To enhance our chances of success, we have increased the size of our team and are making upgrades to our flight software geared toward improving operational flexibility and flight safety.”

Higher Flights

Several of these upgrades have led to reduced navigation errors during flight, which increases both flight and landing safety. A recent software change already on the rotorcraft frees Ingenuity from its previously programmed maximum altitude of 50 feet (15 meters). The altitude gains could result in incremental increases in both air speed and range. A second upgrade allows Ingenuity to change airspeed as it flies. Another enables it to better understand and adjust to changes in terrain texture during flight. Future software upgrades may include adding terrain elevation maps into the navigation filter and a landing-hazard-avoidance capability.

Before aerial reconnaissance of the delta can begin, Ingenuity has to complete its journey to the area. Scheduled for no earlier than March 19, Ingenuity’s next flight will be a complex journey, about 1,150 feet (350 meters) in length, that includes a sharp bend in its course to avoid a large hill. After that, the team will determine whether two or three more flights will be required to complete the crossing of northwest Séítah.

The first experimental flight on another world took place on April 19, 2021, and lasted 39.1 seconds. After another four flights, six more minutes in the air, and traveling a total distance of 1,637 feet (499 meters), NASA transitioned Ingenuity into an operations demonstration phase, testing its ability to provide an aerial dimension to the Perseverance mission. With the completion of Flight 21, the rotorcraft has logged over 38 minutes aloft and traveled 2.9 miles (4.64 kilometers). As Ingenuity pushes farther into uncharted territory, these numbers will inevitably go up, and previous flight records will more than likely fall.

“This upcoming flight will be my 22nd entry in our logbook,” said Ingenuity chief pilot HÃ¥vard Grip of JPL. “I remember thinking when this all started, we’d be lucky to have three entries and immensely fortunate to get five. Now, at the rate we’re going, I’m going to need a second book.”

Source: Jet Propulsion Laboratory

****

An image of a region known as 'Séítah' that was taken by the Ingenuity Mars Helicopter during its 20th flight on February 25, 2022.
NASA / JPL - Caltech

Monday, March 07, 2022

Psyche Update: The Asteroid-bound Explorer Gets Its Wings...

Inside the Spacecraft Assembly Facility at NASA's Jet Propulsion Laboratory near Pasadena, California, engineers conduct a deployment test for the twin solar arrays on the Psyche spacecraft.
NASA / JPL - Caltech

NASA’s Psyche Gets Huge Solar Arrays for Trip to Metal-Rich Asteroid (News Release)

With its solar arrays installed, the spacecraft is close to its final configuration ahead of a planned August launch.

NASA’s Psyche mission is almost ready for its moment in the Sun – a 1.5-billion-mile (2.4-billion-kilometer) solar-powered journey to a mysterious, metal-rich asteroid of the same name. Twin solar arrays have been attached to the spacecraft body, unfolded lengthwise, and then restowed. This test brings the craft that much closer to completion before its August launch.

“Seeing the spacecraft fully assembled for the first time is a huge accomplishment; there’s a lot of pride,” said Brian Bone, who leads assembly, test, and launch operations for the mission at NASA’s Jet Propulsion Laboratory in Southern California. “This is the true fun part. You’re feeling it all come together. You feel the energy change and shift.”

At 800 square feet (75 square meters), the five-panel, cross-shaped solar arrays are the largest ever installed at JPL, which has built many spacecraft over the decades. When the arrays fully deploy in flight, the spacecraft will be about the size of a singles tennis court. After a 3 ½-year solar-powered cruise, the craft will arrive in 2026 at the asteroid Psyche, which is 173 miles (280 kilometers) at its widest point and thought to be unusually rich in metal. The spacecraft will spend nearly two years making increasingly close orbits of the asteroid to study it.

Venturing to the asteroid belt between Mars and Jupiter, far from the Sun, presents challenges for this mission, which adapted standard Earth-orbiting commercial satellite technology for use in the cold and dark of deep space. Near Earth, the solar arrays generate 21 kilowatts – enough electricity to power three or four average U.S. homes. But at Psyche, they’ll produce only about 2 kilowatts – sufficient for little more than a hair dryer.

The underlying technology isn’t much different from solar panels installed on a home, but Psyche’s are hyper-efficient, lightweight, radiation resistant, and able to provide more power with less sunlight, said Peter Lord, Psyche technical director at Maxar Technologies in Palo Alto, California, where the arrays and solar electric propulsion chassis were built. “These arrays are designed to work in low-light conditions, far away from the Sun,” he added.

After the successful installation and deployment of the three center panels inside a clean room at JPL, Psyche’s arrays were folded back against the chassis and stowed for additional spacecraft testing. The arrays will return to Maxar, which has specialized equipment to test the deployment of the two perpendicular cross panels. Later this spring, the arrays will be reunited with the spacecraft at NASA’s Kennedy Space Center in Florida and stowed for launch from Cape Canaveral.

About an hour after launch, the arrays will deploy and latch into place in a process that will take 7 ½ minutes per wing. They will then provide all the power for the journey to asteroid Psyche, as well as the power needed to operate the science instruments: a magnetometer to measure any magnetic field the asteroid may have, imagers to photograph and map its surface, and spectrometers to reveal the composition of that surface. The arrays also power the Deep Space Optical Communications technology demonstration that will test high-data-rate laser communications.

What those instruments relay to scientists will help them better understand the mysterious asteroid. One possible explanation for Psyche’s unusually high metal content is that it formed early in our solar system’s history, either as remnant core material from a planetesimal – one of the building blocks of rocky planets – or as primordial material that never melted. This mission aims to find out, and to help answer fundamental questions about Earth’s own metal core and the formation of our solar system.

Source: NASA.Gov

****

Thursday, March 03, 2022

Europa Clipper Update: Construction Officially Commences on the Jupiter-bound Explorer...

Construction officially commenced on the Europa Clipper spacecraft at NASA's Jet Propulsion Laboratory near Pasadena, California.
NASA / JPL - Caltech / Johns Hopkins APL

NASA Begins Assembly of Europa Clipper Spacecraft (News Release)

Science instruments and other hardware for the spacecraft will come together in the mission’s final phase before a launch to Jupiter’s icy moon Europa in 2024.

When it’s fully assembled, NASA’s Europa Clipper will be as large as an SUV with solar arrays long enough to span a basketball court – all the better to help power the spacecraft during its journey to Jupiter’s icy moon Europa. And just about every detail of the spacecraft will have been hand-crafted.

The assembly effort is already underway in clean rooms at the agency’s Jet Propulsion Laboratory in Southern California. Now, engineering components and science instruments are beginning to stream in from across the country and Europe. Before year’s end, most of the flight hardware – including a suite of nine science instruments – is expected to be complete.

The main body of the spacecraft is a giant 10-foot-tall (3-meter-tall) propulsion module, designed and constructed by Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, with help from NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and JPL. The module, fitted with electronics, radios, cabling, and the propulsion subsystem, will ship to JPL this spring. Europa Clipper’s 10-foot-wide (3-meter-wide) high-gain antenna also will be arriving at the Lab soon.

“We’re moving into the phase where we see the pieces all come together as a flight system,” said Europa Clipper Project Manager Jan Chodas of JPL. “It will be very exciting to see the hardware, the flight software, and the instruments get integrated and tested. To me, it’s the next level of discovery. We’ll learn how the system we designed will actually perform.”

Europa, which scientists are confident harbors an internal ocean with twice the amount of water in Earth’s oceans combined, may currently have conditions suitable for supporting life. Europa Clipper will orbit Jupiter and conduct multiple close flybys of Europa to gather data on the moon’s atmosphere, surface, and interior. Its sophisticated payload will investigate everything from the depth and salinity of the ocean to the thickness of the ice crust to the characteristics of potential plumes that may be venting subsurface water into space.

The first science instrument to be completed was delivered to JPL last week by a team at Southwest Research Institute in San Antonio, Texas. The ultraviolet spectrograph, called Europa-UVS, will search above the surface of Europa for signs of plumes. The instrument collects ultraviolet light, then separates the wavelengths of that light to help determine the composition of the moon’s surface and gases in the atmosphere.

As each instrument arrives at JPL, it will be integrated with the spacecraft and re-tested. Engineers need to be sure the instruments can communicate with the flight computer, spacecraft software, and the power subsystem.

Once all the components have been integrated to form the large flight system, Europa Clipper will move to JPL’s enormous thermal vacuum chamber for testing that simulates the harsh environment of deep space. There will also be intense vibration testing to ensure Europa Clipper can withstand the jostling of launch. Then it’s off to Cape Canaveral, Florida, for an October 2024 launch.

For the leaders of this mission, seeing the engineering components come together with the fleet of instruments will be especially moving, knowing how hard their teams have pushed to work through the coronavirus pandemic.

“I don’t know how I’ll feel, seeing this come together. I suspect it will be somewhat overwhelming,” said JPL’s Robert Pappalardo, the Europa Clipper project scientist. “It’s happening – it’s becoming real. It’s becoming tangible.”

At the same time, the level of difficulty kicks up several notches as the layers of the project merge.

“All of the parallel paths of hardware and software development will start to join together in a way that’s very visible to the team,” said JPL’s Jordan Evans, the deputy project manager. “Everybody’s eyes turn toward the integrated system that’s coming together, which is exciting.”

Source: NASA.Gov

Wednesday, March 02, 2022

Links of the Day: My Buddy MJ Will Help You Gain a Deeper Insight Into the Cycle of Life...

Majdolene will do a tarot card reading for you at the starting price of $10! Read the rest of my Blog entry below for more details.

Good evening, folks! Just thought I'd share these links to help out Majdolene 'MJ' Abualfaraj, my very gifted actress from my short film The Broken Table.

Along with being a very gifted actress, Majdolene is also an awesome artist who'll draw any character for you (or of you), courtesy of her website listed here.

Along with being a very gifted actress and an awesome artist, Majdolene is also very passionate about astrology and will do a tarot card reading for you at the starting rate of $10! You can visit her website for general readings here.

Personally speaking, you should definitely seek a general reading from Majdolene. She was born in early February, which makes her an Aquarius. An Aquarius born in the Age of Aquarius? Well that makes MJ a starseed!

Contact MJ now and she can give you a really deep insight into the Age of Aquarius, as well as past eras like the Age of Pisces and future astrological periods as the Age of Capricorn!

According to MJ, the Age of Pisces began to transition into that of Aquarius two years ago—which would explain the COVID-19 pandemic, upheaval during the 2020 presidential election, the major rise of cryptocurrency, and the Los Angeles Lakers and Dodgers winning world championships within two weeks of each other that year... Well okay, maybe not that last part.

But yea, things are going to get so much more intense for the world in the near future (and I'm not just talking about that Russian madman Putin invading Ukraine) thanks to Aquarius, and Majdolene has the foresight to tell you all about them if you get a general reading from her. So contact her now!

Carry on.

An amazing artwork drawn by Majdolene. Read my Blog entry above to get details about how she can draw a cool image for you, or of you!
Majdolene Abualfaraj

Majdolene will do a tarot card reading for you at the starting price of $10! Read the rest of my Blog entry above for more details.