Puzzles persist about possible water at seasonally dark streaks on Martian slopes, according to a new study of thousands of such features in the Red Planet’s largest canyon system. The study published ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The CaSSIS camera aboard the European Space Agency's ExoMars Trace Gas Orbiter captures dark ...

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 ...

Dark features on Mars previously considered evidence for subsurface flowing of water are interpreted by new research as granular flows, where grains of sand and dust slip downhill to make dark streaks ...

First identified in the 1970s by NASA's Viking mission, long, dark markings snake down Martian slopes, sometimes stretching across Mars' surface for hundreds of feet. Scientists have watched some of ...

Satellite images of the Red Planet suggest scientists were wrong about these strange Martian features. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...