dome dune

April 26, 2019

Baby dunes

I saw an article today linked by the International Society for Aeolian Research‘s Facebook page, on the dangers of dust being lofted in Earth’s youngest desert, the Aralkum Desert in Kazakhstan. It’s where the Aral Sea used to be, decades […]
March 19, 2018

Dune trails deep in Hebes Chasma, Mars

A few weeks ago I wrote about dunes leaving behind trails near the north pole of Mars. They do this in a few other places as well, but it’s not very common. Below is a rare example, this time on […]
December 11, 2017

Dunes in a row

A Piece of Mars: Look at the alignment of the ~100 m dunes in this 713×750 m (0.44×0.47 mi) scene. How do dunes form in such straight lines? And why don’t they always do that? It’s likely that these dunes […]
July 31, 2017

Mars’ giant bubble wrap

A Piece of Mars: This 0.7×0.5 km (0.43x.31 mi) scene shows Mars’ giant yellow bubble wrap, with each “bubble” about 100 m across (seriously, don’t you want to pop them?). These are actually a type of dune called a “dome […]
October 6, 2014

Almost a dune

A Piece of Mars: This field of 2 m wide sand ripples has a dark splotch in the middle (the scene is 300×225 m or 984×738 ft). The splotch is the peak of a low hill that straddles the classification […]