Dark “slope streaks,” likely resulting from dust avalanches, stretch across an area of Mars called Acheron Fossae in this ...

Mars has lost immense amounts of water over it lifetime, and scientists aren't sure exactly how. New research hints that the planet's violently varying tilt may be a key factor.

Understanding the similarities and differences of the deserts on Earth and Mars will help space travelers survive future ...

The discovery of more than 15,000 kilometers of ancient riverbeds on Mars suggests that the Red Planet may once have been ...

It's officially summer, and with that comes the first full moon of the season. July's full moon -- known as the Buck Moon or ...

NASA’s Mars Reconnaissance Orbiter has learned to pull off daring 120-degree rolls that give its SHARAD radar ...

An analysis led by the University of Chicago of Mars Science Laboratory Curiosity rover data may explain why the planet was ...

"Eight minutes later, the orbiter started receiving data from the descent probe, which slammed into the top of the Jovian atmosphere at a comet-like speed of 170,000 kilometers per hour," NASA ...

NASA has discovered the third known interstellar object to pass through our solar system, but the icy snowball object poses ...

Mars and Jupiter are cozying up in the night sky for their closest rendezvous this decade. They'll be so close Wednesday, at least from our perspective, that just a sliver ...