Topic: Transiting Exoplanet Survey Satellite

LP 791-18 d, shown here in an artist's concept, is an Earth-size world about 90 light-years away. (NASA’s Goddard Space Flight Center/Chris Smith (KRBwyle))

Are volcanoes needed for alien life?

Nicole Karlis
(Getty/dottedhippo)

We now have a catalog of exoplanets

Nicole Karlis