For decades, scientists believed that long, dark streaks on the surface of Mars were a sign of something crucial: running water. These streaks, first spotted by NASA’s Viking mission in 1976, sparked ...

For years, scientists have been intrigued by mysterious dark streaks running down the slopes of Martian cliffs and craters. These marks, called slope streaks and recurring slope lineae (RSLs), have ...

Liquid water once shaped the Martian landscape dramatically, carving valleys, filling lakes, and forming vast oceans. Billions of years ago, during Mars' early days known as the Noachian and Hesperian ...

Scientists identified an iron-rich mineral on the surface of Mars that suggests the planet’s surface may be more dynamic than we thought. Reading time 2 minutes Scientists have a fairly good idea of ...

Scientists believe that future human settlements on Mars may rely on metals extracted from asteroids for construction.

Mars is home to perhaps the greatest mystery of the Solar System: the so-called Martian dichotomy, which has baffled scientists since it was discovered in the 1970s. The southern highlands of Mars ...

There might be a hidden ocean's worth of liquid water below the surface of Mars, seismic evidence suggests. According to a new paper published April 25 in the journal National Science Review, ...