Tag Archives: rocks

Shadows behind boulders

A Piece of Mars: Bright material (either dust or sand) has accumulated in the lee of wagon- to car-sized boulders in this 0.96x0.54 km (0.6x0.34 mi) scene. It's perhaps something like the Rocknest sand shadow that Curiosity visited a few ...

It’s a rock-eat-rock world

A Piece of Mars: This 738 x 415 m (0.46 x 0.26 mi) scene shows dark sand flowing down a channel bisected by a ~60 m (~200 ft) tall, thin "island". That island, and many others around it (see the ...

Aeolian shoreline

A piece of Mars: On the left is a steep slope leading to a hill. On the right are waves - but not waves of water or any other kind of liquid. These are dunes or very large ripples, blown ...

Textured gullies

A piece of Mars. These are gullies on a martian hillside (upslope is to the upper right). Water may be what forms the channels, carrying soil and rocks downslope. The textured pattern of the lower slope is caused by the ...

Holes around rocks

A piece of Mars: This scene (509x382 m, or 1670x1253 ft), aside from showing some lovely rippled dunes, has many car-sized boulders in it. Some are surrounded by ditches in the sand, like little moats. Why? The sand is blown ...