Mysterious dark streaks first observed on Mars in the 1970s are not what many believed they were. Scientists now say the ...

Strange, dark streaks on Martian slopes that once hinted at flowing water are now believed to be dry dust slides, revealed ...

Scientists have been arguing about the origin of strange streaks on Mars since the earliest missions to the Red Planet.

For decades, scientists believed that long, dark streaks on the surface of Mars were a sign of something crucial: running ...

Living in today’s age of ambitious robotic exploration of Mars, with an eventual human mission to the red planet likely to ...

NASA’s MAVEN finally sees sputtering—an escape process that stripped Mars of its atmosphere and ancient water.

Using computer models, students Mohammad Afzal Shadab and Eric Hiatt estimated how long it would have taken water to seep ...

But, why? Among the worlds we know, Mars is not superlative in any way. It’s not the brightest, the closest, the smallest, or even the easiest to get to. It’s not as mysterious as Venus ...

Did water once flow on Mars? That's a question that has puzzled ... of Bern in Switzerland decided to take a closer look at the mystery of the dark markings. These lengthy streaks can form ...

Images taken of Mars from orbit dating back as far as the 1970s have captured curious dark streaks running down the sides of cliffs and crater walls that some scientists have construed as possible ...

In a Memorial Day weekend liftoff, SpaceX is targeting the sunny afternoon of Saturday, May 24, to launch another Falcon 9 ...