F irst 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 ...

Since the 1970s, scientists have studied dark streaks seen on Mars' cliff sides and crater walls. The streaks tend to be hundreds of meters long. Some can last for a long time, while others are ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Martian "slope streaks" spotted by NASA's Mars Reconnaissance Orbiter in 2017. Scientists ...

Some slope streaks are long-lasting, while others—called recurring slope lineae (RSL)—are more ephemeral, continuously appearing in the same places during Mars’ hottest times of the year.

Mysterious dark streaks first observed on Mars in the 1970s are not what many believed they were. ... These results cast new doubt on slope streaks and RSLs as habitable environments.

The results of a study into thousands of 'slopes' found by NASA on Mars' surface has left scientists surprised. The planet, ...

This observation shows bright and dark slope streaks in craters in the Arabia Terra region. Slope streak formation is among the few known processes currently active on Mars. The cause of slope ...

These marks, called slope streaks and recurring slope lineae (RSLs), have often been considered possible signs of water on Mars. That raised hopes that the Red Planet could support life or may ...

To figure this out, they created the first global map of Martian slope streaks, cataloging over 500,000 individual features across the planet's surface.

Mysterious dark streaks first observed on Mars in the 1970s are not what many believed they were.. Scientists now say the curious features that stretch for hundreds of meters down Martian slopes ...

Mysterious dark streaks first observed on Mars in the 1970s are not what many believed they were. ... These results cast new doubt on slope streaks and RSLs as habitable environments.