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NASA discovers "super earth" or exists in life
2019/8/30
After completing its first year of observations in the southern sky, NASA's Transiting ExoplanetSurvey Satellite has spotted some intriguing new exoplanets only 31 light-years away fromEarth.
Multiple exoplanets -- planets orbiting stars outside our solar system -- were discoveredorbiting an M-dwarf star, called GJ 357 in the Hydra constellation. The star is 40% cooler thanour sun and only about a third of the sun's mass and size. A study describing the three planetswas published this week in the journal Astronomy & Astrophysics.
The first exoplanet discovered around the star was GJ 357 b.
The exoplanet is 22% larger and 80% more massive than Earth, making it a super Earth. Theresearchers estimate that it has an average temperature of 490 degrees Fahrenheit. Itcompletes one orbit around the star every 3.9 days.
（from http://www.kekenet.com/read/201908/591654.shtml）
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