Curiosity Mars Rover

A book-shaped rock on Mars was likely carved by ancient water running through the area, scientists on NASA's Curiosity rover mission say.

NASA's Curiosity rover has spent more than 10 years exploring the Red Planet. Now the mission has new software allowing the rover to explore Mars more efficiently.

NASA's Curiosity Rover has caught its first image of the sunset on Mars as it began a new campaign observing clouds over the Red Planet at twilight.

NASA's Curiosity rover has rolled up on another meteorite on Mars, an iron-nickel rock the mission team has dubbed "Cacao."

Opals, which contain a lot of water, have been found on Mars. They might be an indicator of past life and possibly a source of water for astronauts in the future.

There may have been no oxygen in the atmosphere of ancient Mars after all, a new study has found, but don't despair, there still could have been living creatures crawling on the planet.

After a treacherous journey, NASA's Curiosity Mars rover has reached an area that is thought to have formed billions of years ago when the Red Planet's water disappeared.

With a worldwide shortage of plutonium-238, future planetary science missions are in jeopardy.

NASA is facing a plutonium shortage that may thwart future missions.