This is pretty cool. They have been predicting orphan planets (planets that don't have a parent star) for a long time, but they're on the verge of actually detecting them. Come to find out there may be more out there then we think. Infact, there may be as much as twice as many free floating planets as there are stars in the universe.
NASA - Free-Floating Planets May Be More Common Than Stars
NASA - Free-Floating Planets May Be More Common Than Stars
The discovery is based on a joint Japan-New Zealand survey that scanned the center of the Milky Way galaxy during 2006 and 2007, revealing evidence for up to 10 free-floating planets roughly the mass of Jupiter. The isolated orbs, also known as orphan planets, are difficult to spot, and had gone undetected until now. The newfound planets are located at an average approximate distance of 10,000 to 20,000 light-years from Earth.
"Although free-floating planets have been predicted, they finally have been detected, holding major implications for planetary formation and evolution models," said Mario Perez, exoplanet program scientist at NASA Headquarters in Washington.
The discovery indicates there are many more free-floating Jupiter-mass planets that can't be seen. The team estimates there are about twice as many of them as stars. In addition, these worlds are thought to be at least as common as planets that orbit stars. This would add up to hundreds of billions of lone planets in our Milky Way galaxy alone.
