Atmosphere Spotted on Nearly Earth-Size Exoplanet tagged posts

Researchers have detected an atmosphere around a near-Earth-size planet, GJ 1132b, located 39 light-years away, depicted here in an artist’s impression. Credit: MPIA

The exoplanet GJ 1132b, which orbits the dwarf star GJ 1132, is located about 39 light-years away from Earth. It has a radius about 1.4 times that of Earth and is 1.6 times Earth’s mass, according to the new study. When the planet was first discovered, researchers called it a potential Venus twin because it’s a rocky world with a very high surface temperature — and now, they’ve found that the planet and Venus might have a thick atmosphere in common, too (although it would have a different composition).

While observers have pinpointed atmospheres around much larger, Jupiter-like gas giants orbiting other stars — and a larger ...