Astronomers Find an Atmosphere On a Nearby Earth-Like Planet

Astronomers have directly detected helium in the atmosphere of LHS 1140 b, a rocky exoplanet 48 light-years away that sits in its star’s habitable zone. The finding marks the first confirmed atmosphere around a rocky, Earth-like planet in the habitable zone, strengthening the case that some planets orbiting red dwarfs can retain atmospheres and potentially support liquid water. “We have actually detected directly the helium present in the atmosphere itself, and that’s the first direct detection for any rocky exoplanet, which is really exciting …