Hubble Detects Signs of Water on TRAPPIST-1 Planets04:33

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Published on September 11, 2017

NASA’s Hubble Detects Signs of Water on Potentially Habitable TRAPPIST-1 Planets
Several of the planets orbiting a nearby star may harbor “substantial amounts” of water, astronomers say, including three planets situated in a habitable part of the star’s solar system.

The star—called TRAPPIST-1—is an ultracool dwarf star 40 light years away. It is orbited by seven Earth-size planets, according to the Hubble Space Telescope.

Following the discovery of the planets in February, an international team of astronomers used the telescope’s imaging spectrograph to measure the amount of ultraviolet radiation received by individual planets in the system. Read Full Report:

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