Tuesday, May 15, 2012

Brown dwarf discovered orbiting Sun-like star and what constitutes ‘life’

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 - An international team of astronomers led by David Pinfield of the University of Hertfordshire has found a brown dwarf that is more than 99% hydrogen and helium. Described as ultra-cool, it has a temperature of just 400 degrees Celsius and its discovery could be a key step forward in helping astronomers distinguish between brown dwarfs and giant planets. See article.
g Abodes - New research shows that a giant impact crater on the Asteroid (4) Vesta was created much more recently than previously thought. See article.
g Life - In a new essay, published in the journal PLoS Biology, professor Gerald Joyce of the Scripps Research Institute examines what constitutes “life” and the probability of discovering new life forms on Earth and beyond. See article.

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