LHS 1140 b: Astronomers have confirmed an atmosphere around a rocky exoplanet. This planet, LHS 1140 b, orbits within its star's habitable zone. Researchers detected helium gas in the planet's upper atmospheric layers. This discovery marks a significant step in searching for life beyond Earth. Scientists continue to investigate the exoplanet's full atmospheric composition.

"It's in the habitable zone, which is super exciting for astrobiology and habitability and searching for life."

For the first time, scientists found that a rocky planet in the habitable zone of its star has an atmosphere. It’s the best place to look for alien biosignatures, scientists say.