Artist's impression of the HD 106906 system. (ESA/Hubble, M. Kornmesser) =================================================================== Most of the over 4,300 confirmed exoplanets discovered to date share something in common - a relatively close orbit to their host star. Now, astronomers have found something extraordinary - a giant exoplanet on a bizarre, 15,000-year orbit around a binary star. It's the first time scientists have been able to characterise such a huge orbit. The exoplanet is called HD 106906 b, clocking in at 11 times the mass of Jupiter. It orbits a pair of hot, main-sequence yellow-white stars called HD 106906; these stars are just 15...