Lifemayhaveevolvedonatleastthreeplanetswithinanewlydisc...
問題詳情:Lifemayhaveevolvedonatleastthreeplanetswithinanewlydiscoveredsolarsystem39lightyearsfromEarth.AstronomersattheNASAhavediscoverednolessthansevenroughlyEarth-sizedworldsorbitingadwarfstarinthesy...