HELLO FROM EARTH Update... As of 7 PM California time tonight (12 PM Sydney time on Friday, June 25), it will be 43 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 will be 4.8 trillion miles (7.7 trillion kilometers) from Earth. By August 27, the radio beam will officially be 1 light-year distant from our world. Cool. The Sent Forever signal that was transmitted from the United Kingdom at 8:07 PM (California time) on October 5 last year is now 4.2 trillion miles (6.8 trillion kilometers) from Earth as of this typing.
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