Building a new planet
Tuesday, January 4, 2011 - 11:33
in Astronomy & Space
(PhysOrg.com) -- Astronomers over the past decade have made remarkable progress in the study of extrasolar planets; over 500 distant worlds are now confirmed. Meanwhile, as this active research community continues to discover and characterize more planets and planetary systems, another group of scientists has been asking the question, "Where do these planets come from in the first place?"