While Mars today only has a wispy remnant of an atmosphere, it may once have had one hundreds of times thicker with a ...

In the search for habitable exoplanets, atmospheric conditions play a key role in determining if a planet can sustain liquid ...

While the early climate of Mars remains an open question, a new study suggests that its atmosphere may have been hospitable ...

Viking consisted of two twin orbiters and landers, with experimental chambers in the landers to conduct three biology ...

Astronomers have struggled to explain why a long and thin cloud forms above Mars’s Arsia Mons volcano each year, until now ...

Did Mars ever have life? Researchers have come up with a new theory to answer this question Mars' viability has been a ...

A rare glimpse into the wintry conditions of Mars’s north polar vortex has shown that temperatures inside the vortex are far ...

"The fact that we captured the aurora again demonstrates that our method for predicting aurorae on Mars and capturing them ...

Scientists are steadily ruling out habitable conditions on the seven planets of the star Trappist-1. On one of the worlds, a ...

Simulations show how the low density on Mars affects lift, aiding in the design of small, flapping-wing exploration crafts.

On the Red Planet, aurorae glow green because the charged particles collide with oxygen atoms high above Mars. They may be ...

A rocky, Earth-size planet located in our Milky Way galaxy may have an atmosphere around it, according to new research, ...