Previously considered an airless ball, an Earth-sized world orbiting a red dwarf some 40 light-years away may have ... In stark contrast with a paper released last year that determined the exoplanet ...

Is it possible that one day we could make Mars like Earth? – Tyla, age 16, Mississippi When I was in middle school, my ...

A collection of Martian rocks could reveal details about potential past life on the Red Planet – but first NASA has to get ...