NASA发现7颗超近类地行星星际移民或有盼头了_时事

NASA发现7颗超近类地行星星际移民或有盼头了

美国宇航局的科学家们称，他们在距地球40光年处发现围绕单一恒星“特拉普1号”(Trappist-1)运行的7颗系外行星。他们认为，这一酷似太阳系的行星系，堪称迄今寻找外星生命的最佳地点。

NASA scientists have discovered at least seven Earth-sized planets, each potentially capable of hosting life, orbiting a nearby star just outside the solar system.

美国宇航局的科学家们发现，至少有七颗地球大小的行星围绕着太阳系外的一颗临近恒星运行，每颗行星都可能适宜生命体生存。

The exciting discovery announced Wednesday has been deemed one of the first realistic opportunities to begin a search for alien life outside our system as well as the first time so many planets were discovered circling the same star.

22日公开的发现激动人心，被视为开启探索太阳系外外星生物的首批现实机遇之一，也是人类首次发现如此多的行星环绕在同一颗恒星周围。

“This discovery could be a significant piece in the puzzle of finding habitable environments, places that are conducive to life. Answering the question 'are we alone' is a top science priority and finding so many planets like these for the first time in the habitable zone is a remarkable step forward toward that goal,” associate administrator of the agency's Science Mission Directorate in Washington Thomas Zurbuchen said in a press release.