Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. The CaSSIS camera aboard ...

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 ...

For years, researchers have been arguing about whether strange streaks on the Martian surface are caused by flowing water or sliding dust. The real answer may combine both. Recurring slope lineae ...

Dark streaks on Martian slopes called Recurrent Slope Lineae (RSL) have been seen from Mars orbit for years, and various theories have been proposed about how they form. The latest suggestion, ...

Want the latest space news? Choose a subscription option. Whether you're looking for the latest space exploration, business, government, education, technology, policy news, opinions and more, we've ...

Recurring slope lineae are Martian seasonal features characterized by a low brightness (albedo) during local spring/summer that fade during winter/late summer. Their daily characterization through a ...