Valles Marineris in imagery captured the Mars Reconnaissance Orbiter. Global topography: NASA/GSFC CTX global mosaic: ...

Mariner 4, built by JPL in Pasadena, took the images on July 14, 1965. One of the mission's leaders reflects on decades of ...

Sixty years ago today, NASA’s Mariner 4 spacecraft took the first up-close images of Mars, changing humanity's understanding ...

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

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

NASA's Mariner 4 captured the first-ever close-up image of Mars on July 14, 1965. While waiting for the data to be processed ...

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

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

For years, scientists have been looking for signs of liquid water just beneath the surface of Mars. New research recently published in Nature Communications may have dried up one of the most ...

Looks like Mars might have had more water than anyone previously imagined.

In a dramatic new discovery, scientists have identified over 15,000 kilometers of ancient riverbeds on Mars, revealing that ...

New research has uncovered more than 15,000 kilometers of ancient riverbeds on Mars, suggesting that the Red Planet may have ...