Scientists have discovered seven Earth-like planets orbiting a star dubbed TRAPPIST-1.
All seven orbit close to the star – if they were circling our sun, they would all be closer than Mercury.
NASA is most interested in three of the exoplanets which lie in the hospitable zone.
Also known as...
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Thursday, February 23, 2017
NASA announcement: What is an exoplanet and could there be alien life in our galaxy? | Science | News
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