Imagine a scenario where the Moon, our constant companion in the night sky, begins a deadly trajectory toward Earth. The ...

Imagine for a moment that Earth suddenly shrank to the size of the Moon, while the Moon expanded to the size of Earth. How ...

Analysis by researchers at the University of Bern suggests that water and other volatile compounds arrived on Earth from ...

TRAPPIST-1, a planetary system 40 light years from Earth, could host a planet with an atmosphere and liquid water, but astronomers can’t be certain just yet.

A sci-fi idea is gaining supporters, from billionaires to city councils. Whether it's feasible is another matter.

Astronomers are researching an Earth-like exoplanet that could contain water, according to NASA. The exoplanet, named ...

That raises the possibility that the TRAPPIST-1e exoplanet could also have liquid water and therefore support life.

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

In what we can only interpret as a show of solidarity for the Solar System's beleaguered dwarf planet Pluto, the Sun put its heart prominently on its sleeve atmosphere.

Researchers used atomic-scale computer simulations to discover the importance of carbon in forming a solid planetary core.