Astronomers have spotted a "rogue planet" - wandering the cosmos without a star to orbit - 100 light-years away.
Recent finds of such planets have suggested that they may be common, but candidates have eluded close study. The proximity of the new rogue planet has allowed astronomers to guess its age: a comparatively young 50-120 million years old. The planet, dubbed CFBDSIR2149-0403, is outlined in a paper posted online to appear in Astronomy and Astrophysics.
http://www.bbc.co.uk/news/science-environment-20309762
http://arxiv.org/abs/1210.0305