Saturday, January 16, 2010

Five years on Titan and water on Mars 3 billion BCE

Welcome! "Alien Life" tracks the latest discoveries and thoughts in the various elements of the famous Drake Equation. Here's today's news:
g Abodes - New satellite images suggest that the surface of Mars was warm enough to sustain lakes three billion years ago. This period of time on Mars was previously thought to be too cold and arid for liquid water to persist. The data may have implications in determining the habitability of ancient Mars. See article.
g Message - While some scientists cautiously plan for ways to reply to extraterrestrial transmissions, others haven't waited for a signal to start talking. Sending messages from Earth into space to announce the existence of the human race is somewhat rare and controversial. Digital transmissions have been beamed into space from radio telescopes, and four spacecraft currently leaving the solar system bear messages for anyone who finds them. See article. Note: This article is from 2002.
g Cosmicus - Exactly five years ago today the European Space Agency's (ESA) Huygens Probe made history when it landed on Titan, the largest moon in the Saturnian system. The touchdown on the surface of Titan marked the first, and so far only, landing of a man-made probe in the outer Solar System. See article.

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