In the search for planets, astronomers have traditionally hunted around stars. But a new study estimates that planets that don't orbit stars could be far more plentiful than previously thought.
The Kavli Institute for Particle Astrophysics and Cosmology (KIPAC) at Stanford reported yesterday that new methods have dramatically raised the estimate of "nomad planets" in the Milky Way. There could be 100,000 more free-floating planets than stars in the galaxy.
Though they don't have the sun's energy to support life, some of these planets could have the conditions to support--and spread--microbial life through a … Read more