The study published on Monday in the journal The Astrophysical Journal Letters reported the Earth-sized planet called HD 21749c that takes eight days to orbit its host star. The host star of those two planets ha
The cold planet spins around the Bernard's star, our fourth-closest neighboring star overall, after Alpha Centauri's triple-star system. Bernard's star, just six light years from Earth, is smaller and older than our Sun and among the least-active known red dwarfs. Astronomers stitched data ...
TOI 700 d, one of only a few Earth-size planets discovered in a star's habitable zone so far, is a small, cool M dwarf star located just over 100 light years away in the southern constellation Dorado. It's roughly 40 percent of the sun's mass and size and about half its surface ...