NASA TESS finds super-Earth in nearby galaxy

NASA’s TESS (Transiting Exoplanet Satellite Survey) exoplanet survey satellite has discovered two super-Earths in a galaxy 33 light-years away from Earth . The galaxy’s parent star, numbered HD 260655, is an M-class dwarf star much smaller than the sun, but more common in the universe than sun-like stars. One of the two planets revolves once in 2.8 Earth days, 1.2 times the size of the Earth and 2 times the mass of the Earth, and the other orbits once in 5.7 Earth days, 1.5 times the size of the Earth and 3 times the mass of the Earth, they are both considered rocks Planets, but unlikely to be hospitable to life, because they are too close to the star and the surface temperature is too hot for water to exist.

This article is reprinted from: https://www.solidot.org/story?sid=71890
This site is for inclusion only, and the copyright belongs to the original author.

Leave a Comment

Your email address will not be published.