Ancient shoreline features hint that water on Mars once formed a vast ocean.

Even though the Red Planet's atmosphere is thin, wind is still one of Mars' most relentless sculptors.

Another view from Perseverance shows how windswept Mars' landscape truly is.

NASA's Curiosity rover has sent back a striking new "postcard" from high on the slopes of Mount Sharp, offering a dramatic ...

MAVEN was built to last in orbit until 2030 — that's not looking likely anymore.

The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too ...

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...

Planets, stars, and star clusters, oh my!

Exploration advocates are pushing back against the planned cancellation of NASA's Mars sample return project, saying it could ...

"The Chinese may well beat the U.S. with a grab sample." ...