Tuesday, March 17, 2009

Search for life on Mars and how simple photosynthesising life forms changed the Earth

Welcome! "Alien Life" tracks the latest discoveries and thoughts in the various elements of the famous Drake Equation. You may notice that this and future entries are shorter than usual; career, family and book deal commitments have forced me to cut back some of my projects. Now, here's today's news:
g Abodes - At the most recent NASA Astrobiology Science Conference, a panel of scientists discussed different types of planets where we might find alien life. In the fifth segment of this series, the panelists address questions from the audience about the search for life on Mars and elsewhere. See article.
g Life - Simple, photosynthesising life forms created an excess of oxygen in oceans 700 million years earlier than previous estimates suggest, an international team of geologists claim. See article.
g Cosmicus - For the second time in a week, the International Space Station is being threatened by a piece of wayward space junk. See article.

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