Common Jupiters?

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Source:  NSF Release 11-099
Excerpt: …Astronomers have discovered a new population of Jupiter-size planets floating alone in the dark of space, away from the light of a star. According to the scientists, these lone worlds were probably ejected from developing planetary systems. ...Using data collected between 2006 and 2007, … researchers turned up evidence for what now appear to be 10 free-floating planets roughly the mass of Jupiter. See also: New York Times article 2010-05-19 by Dennis Overbye [link:
www.nytimes.com/2011/05/19/science/space/19planets.html andwww.nasa.gov/home/hqnews/2011/may/HQ_11-148_Free_Planets.html

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