Tuesday, July 2, 2002

30 Billion Earths In Milky Way

Virtually all the stars out to about 100 light-years distant have been surveyed. Of these 1,000 or so stars, about 10% have been found to possess planetary systems. So, with about 300 billion stars in our galaxy, there could be about 30 billion planetary systems in the Milky Way alone; and a great many of these systems are very likely to include Earth-like worlds, say researchers.
http://news.bbc.co.uk/hi/english/sci/tech/newsid_2078000/2078507.stm

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