If it pans out, it may complicate Elon Musk’s dreams of founding a settlement on the fourth planet from the sun.

Just two decades after astronomers discovered the first exoplanet, NASA has confirmed the existence of 6,000 alien worlds.

Learn about SIMP-0136, a rogue planet emitting wavelengths that reveal patchy clouds and auroras similar to the Northern ...

Two recent studies used seismic data from NASA's retired InSight mission to shed light on what lies beneath Mars’ surface and what that means for the planet’s history ...

Seemingly contradictory materials are trapped together in two glittering diamonds from South Africa, shedding light on how ...

Learn why living in a city makes a certain species of lizard more social, revealing an effect of urbanization on animal ...

The Cairo Fossil Forest is the second oldest in the world. These forests mark a turning point in Earth's history because they ...

Planets are not living organisms and, like molecules, do not have to be biological. But at least one is deeply biological in ...

Planetary scientists studying Mars have discovered that its polar vortex has temperatures much lower than predicted. A polar ...

The rate of finding these distant worlds has recently increased, with astronomers scrambling to accommodate the data ...

The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.

A cat parasite in humans? Discover more about a cat parasite called toxoplasmosis and its complex life cycle that can infect ...