Saturday, October 20, 2012

More evidence of surface water in Martian past

Welcome! "Alien Life" tracks the latest discoveries and thoughts in the various elements of the famous Drake Equation. Here's today's news:
g Stars - Using gravitational "lenses" in space, University of Utah astronomers discovered that the centers of the biggest galaxies are growing denser - evidence of repeated collisions and mergers by massive galaxies with 100 billion stars. See article.
g Abodes - A meteorite that landed in the Moroccan desert 14 months ago is providing more information about Mars. The Tissint meteorite shows evidence that it interacted with water on the Martian surface before it made its long journey to Earth. See article.
g Cosmicus - Don Pettit, member of the Expedition 31 crew, documents the life of a zucchini grown in orbit on the International Space Station. Studying how plants grow in space can help astrobiologists understand how Earth life adapts to the space environment. See article.

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