Tuesday, June 15, 2010

Some exoworlds may be brown dwarfs and when the Earth/moon formed

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 - Six out of 133 exoplanets might actually be brown dwarfs, according to a new study. See article.
g Abodes - New study shows that the Earth and Moon may have been formed much later than previously believed. Understanding the history and formation of the Earth is important in determining the potential for habitable worlds around distant stars. See article.
g Intelligence - We have recorded humpbacks making sounds like the trumpeting of elephants, roars like lions, whistles like dolphins, clicks like the sperm whale, mooing like cows, chattering like monkeys, and several very human-like vocalizations – some even sounding like an unusual language, with exclamations like “whoops!” Although we are just beginning to document and classify all the diverse sounds of the humpback whales, we already expect its repertoire to exceed that of any other animal we have studied to date. See article. Note: This article is from 2006.
g Aftermath - For some provocative reading, pick up “Sharing the Universe,” by Seth Shostak, at your local bookstore. SETI scientist Shostak almost single-handedly is outlining social and political issues that will arise once we make contact with extraterrestrials. See reviews.

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