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Alien Life

Solar system’s oldest minerals and microbes on the Moon

8 May 2011, 15:00 UTC
Solar system’s oldest minerals and microbes on the Moon
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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 - In the May-June issue of the journal American Mineralogist, a team of scientists announced the discovery of the new mineral krotite, one of the earliest minerals formed in our solar system. It is the main component of an unusual inclusion embedded in a meteorite (NWA 1934), found in northwest Africa. These objects, known as refractory inclusions, are thought to be the first planetary materials formed in our solar system, dating back to before the formation of Earth and the other planets. See article.g Life - New research is helping astrobiologists understand the end-Permian extinction, a dramatic biological crisis that profoundly affected the history of life on Earth. However, the new data indicates that this major extinction event may not have been catastrophic for some organisms. See article.g Message - Recent discussions within the SETI community have thoroughly explored the issue of whether people with access to radio telescopes should send powerful signals to alien civilizations without some process of prior international consultation. In particular, those exchanges have focused on the question of "Active SETI." See article.g Cosmicus ...

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