Thursday, November 12, 2009

An artist's concept of the Gliese 581 star system.

HELLO FROM EARTH Update... As of 7 PM California time tonight (12 PM Sydney time on Friday, November 13), it has been eleven weeks since a radio signal containing 25,878 goodwill text messages—including one by me—was transmitted to the exoplanet Gliese 581d from a giant NASA antenna in Australia. The signal is now 1.2 trillion miles (1.9 trillion kilometers) from Earth. 1 trillion miles... Wow. The Sent Forever signal that was transmitted from the United Kingdom at 8:07 PM (California time) on October 5 is now 610 billion miles (982 billion kilometers) from Earth as of this typing. I’ll probably submit another message early next year.


A satellite dish at the Goonhilly Earth Station in the United Kingdom.

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