The Hubble Space Telescope has spotted a young Jupiter-like protoplanet that’s supporting an unusual planetary formation theory, according to a new study. The subject of the image is the planet AB ...

The disk-instability model 9,10,11,12,13,14 was developed to explain outbursts in compact binaries in which a white dwarf accretes from a low-mass companion 15. A cool (neutral) quiescent disk is ...