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Thread: Discussion: Could 1 in 3 Earth-like Worlds ...

  1. #1
    Join Date
    Jul 2003
    SUMMARY: Two researchers from Australia believe that life in the Universe may be more common than previously thought. Since life only took half a billion years to gain a foothold on our planet, they theorize, the odds of it happening on any Earth-like world must be good. With only one planet to sample, though, the Earth, there still isn't any way to judge whether our planet is an anomaly or well within the norm. NASA's upcoming Terrestrial Planet Finder due for launch in a decade will help scan for Earth-like planets in the future.

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  2. #2
    Join Date
    Aug 2005
    I think the chances of life gaining a foothold on Earth-like planets must be pretty good, but I guess the question here is, what constitutes an Earth-like World? Do Venus or Mars for instance constitute Earth-like worlds?

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