Earth is the planet we have the best opportunity to understand in detail—helping us see how other rocky planets behave, even ...

Scientists did not find a robust atmosphere around TRAPPIST-1d, an Earth-size exoplanet many hoped would show signs of having air. - NASA / ESA / CSA / J. Olmsted illustration As scientists delve ...

The search for life beyond the solar system is heating up. Though biosignatures around super-Earth K2-18b remain unconfirmed, the JWST has found the planet could be a water-rich ocean world.