Mars is easiest to see when it’s closest to Earth, which happens about every two years. This event is called “opposition.” In ...

The meteorite is believed to have been blown off the surface of Mars by an asteroid strike before traveling 140 million miles ...

New discoveries by NASA's Curiosity Mars rover may not only explain why the Red Planet is a dry, lifeless desert, but that it ...

A sweeping orbital survey charted over 9,320 miles (15,000 kilometers) of riverbeds winding etched into Noachis Terra, a ...

A 54-pound meteorite from Mars is expected to fetch up to $4 million when it goes up for auction later this month at ...

A new map shows hidden Martian rivers stretching thousands of miles, offering fresh evidence of a warm, wet ancient Mars.

NASA has revealed a concept for the next generation of flight on the Red Planet, the "Mars Chopper." Credit: Space.com | ...

In all, there are only 400 known Mars rocks on Earth, comprising less than 1% of all known space rocks on the Blue Planet.

The aerospace giant says it can revive Mars Sample Return with a leaner, lower-cost approach drawing on proven designs.

The spacecraft now almost tips upside down relative to Mars to give its radar the best view. The Mars Reconnaissance Orbiter ...

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

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