Astronomers have detected escaping helium gas around LHS 1140 b, a rocky super-Earth orbiting in the habitable zone of a nearby cool star, making it the first rocky world in such an orbit to show ...

Astronomers found helium in the atmosphere of LHS 1140 b, a rocky exoplanet 48 light-years from Earth, the first confirmed ...

For decades, astronomers hunting for life on other worlds faced a maddening gap in the evidence: they could find rocky planets positioned at the right distance from their stars, but they could not ...

Scientists say exoplanet LHS 1140b shows promising signs that it could have an atmosphere, making it potentially suitable for ...

Hydrogen can react with other chemicals, and both it and helium can be lost to space. Venus, Earth, and Mars are thought to have second atmospheres, with their original hydrogen/helium envelopes ...