Deep freeze

 作者:汲蓣椰     |      日期:2019-03-07 07:02:00
By Govert Schilling in Pasadena DARK, frozen and lifeless—that’s the prospect for a planet forming around a brown dwarf star. Yet these inhospitable planets could be very common, the AAS heard. Brown dwarfs are tens of times heavier than Jupiter but not massive enough to ignite nuclear fusion,