Astronomers have detected helium escaping from the super-Earth LHS 1140 b, providing the strongest evidence yet that a rocky planet in another star's habitable zone has retained an atmosphere for billions of years.
Source: [Live Science](https://www.livescience.com/space/exoplanets/its-absolutely-exciting-astronomers-discover-an-atmosphere-around-an-earth-like-planet-in-the-habitable-zone-for-first-time-ever)