SpaceGeneral relativity might save some planets from death Some habitable worlds orbiting dead stars could be kept alive for aeons thanks to a quirk of Einstein’s theory of gravity 51¶¯Âþ
SpaceHabitable planets could have formed at the dawn of the universe Worlds with liquid water could have formed just 200 million years after the big bang from the remains of the earliest supernovae 51¶¯Âþ