- 问题详情:Followingnewsofthepotentialforlifeontherecently-discoveredTRAPPIST-1system,theremaybeanothercompetitorreadytotakeitsplace. WiththehelpoftheCassinispacecraft,NASA(NationalAeronauticsandSpaceAdministration)scientistshavepickedupthefirstevidenc...
- 19397