Planet or failed star?

Astronomers using the NASA/ESA Hubble Space Telescope have photographed one of the smallest objects ever seen around a normal star beyond our Sun. Weighing in at 12 times the mass of Jupiter, the object is small enough to be a planet. The riddle is that it is also large enough to be a brown dwarf, a failed star.

Full story:

http://www.esa.int/esaSC/SEMMR73VRRE_index_0.html