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Monday, April 11,2011

Are we alone in the universe?

By Matt Benjamin and Chris Maytag
Biologists have been deepening our understanding of what kinds of environments life might need to flourish, and have found terrestrial life appearing pretty much everywhere they’ve looked, including in some of the most inhospitable places one might imagine. Meanwhile, astronomers have been looking more deeply, and with better instruments, into the universe around us, and have discovered that planets appear to be quite common in the cosmos, as are the chemical ingredients we know that life seems to require here on Earth.
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