Scientists found a rockyrocky/ˈrɒki/L1多岩石的Made of rock or having many rocks. planetplanet/ˈplænɪt/L1行星A large round thing in space that goes around a star. with air around it. This planet is like Earth. It is in a good spotspot/spɒt/L1地点A particular place or area. near its star. It is not too hot and not too cold. The planet is called LHS 1140 b. It is very far from us.
The air has helium gasgas/ɡæs/L1气体A substance like air that is not a liquid or a solid.. This gas cannot help lifelife/laɪf/L1生命The state of being alive; living things.. But other gases may be there too. One scientist said this is a big deal. He is happy because it is a first step. Maybe one day we will find life on another world.
