Everyone who has ever lived on Earth has been well-aware of the moon, but it turns out Earth also has some frequent temporary ...

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 ...

"It confirms K2-18 b to be our best chance to study a potential habitable environment beyond the solar system at the present time." The saga surrounding Neptune-size "super-Earth" exoplanet K2-18 b ...

Exoplanet TRAPPIST-1 e may contain an atmosphere and liquid water, NASA scientists said. Research into the exoplanet is ...

The planet TRAPPIST-1e lies in its star’s Goldilocks zone, where water remains liquid – and an analysis suggests it might ...

Early Earth may not have had the right ingredients for life — until a nearby Mars-size planet crashed into it, two new ...

Earth is so far the only known planet on which life exists—with liquid water and a stable atmosphere. However, the conditions were not conducive to life when it formed. The gas-dust cloud from which ...