The first surface science results from the Mars Science Laboratory (MSL) mission provide the most definitive evidence yet of an ancient stream flow on Mars, as reported in a Science paper “Martian ...

If you went to Mars and took a closer look at some of the planet’s steepest slopes, then you would probably come across surface features known as recurrent slope lineae (or RSL for short). Image ...

The terminal end of the RSL slopes, said Dundas, are identical to the slopes of sand dunes where movement is caused by dry granular flows. Water almost certainly is not responsible for this behavior, ...

Dark features on Mars, that were thought to be evidence of liquid water flowing on the red planet, were created by moving sand and dust, a study suggests. (Image: AP) Dark features on Mars, that were ...

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 ...

Posts from this topic will be added to your daily email digest and your homepage feed. Two years ago, NASA made a big splash when it announced the discovery of flowing water on the surface of Mars.

To model how sand jams in an hourglass, physicists combine two gridlike math models. Flowing sand is vulnerable to jamming, including a jamming transition that could be disrupted. Granules and the ...

Take two panes of glass and glue them together with liquid and sand in between, and you’ve got the makings of some eye-popping dynamic sandscape art. For the above video, Joey Shanks (Shanks FX, in ...

Sand in an hourglass might seem simple and straightforward, but such granular materials are actually tricky to model. From far away, flowing sand resembles a liquid, streaming down the center of an ...