Friday, May 13, 2011

Nanoparticle food sources and potential habitability of Teegarden’s Star

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 - What is the potential habitability of Teegarden’s Star, an M-type star a little more than 12 light years from Earth? See article.
g Life - New research has helped locate the source of iron that bacteria and tiny plants on the ocean floor use to survive. Deep sea hydrothermal vents release pyrite nanoparticles that are so small they become dispersed in the ocean to form a potential food source for life in the deep sea. See article.
g Message - When the Voyager 1 and 2 spacecraft were launched in 1977, they each included a gold-plated phonograph record (a "golden record") of natural sounds, greetings in human voices, and a variety of music. The record cover has symbolic instructions that show how to use and understand the record, though scientists still debate whether other civilizations will be able to decipher them. For info on Voyager’s golden record, see article.

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