Why Does Nature Form Exoplanets Easily?
arXiv:1304.6104
Abstract
The ubiquity of worlds beyond our Solar System confounds us.
Published in American Scientist: Volume 101, Number 3, Pages 184 to 187. Editorial errors corrected. (http://www.americanscientist.org/issues/pub/why-does-nature-form-exoplanets-easily)