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NASA Telescope Record-Breaking Exoplanet detection

collected by :Irin Lilly
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In a much-anticipated press conference on 22 February 2017, NASA announced the discovery of seven “Earth-sized” planets orbiting a single star 40 light years away.
On top of that, when M dwarfs are young, they are much, much brighter during a period called the pre-main sequence.
Of the few dozen Habitable Zone planets that have been detected to date, most are hundreds of light-years away whereas TRAPPIST-1 is just 40 light-years away.
NASA monitored this star, named TRAPPIST-1 after the Chilean ground telescope that discovered it and two of the seven planets, for 20 continuous days using their Spitzer Space Telescope.
M dwarfs flare frequently and can emit a lot of high energy radiation that can batter their planets’ atmospheres.
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