There are some stunning new images of Mars’ windswept impact craters

The European Space Agency (ESA) has released stunning images of a windswept Mars.

The colourful pictures, taken by the ESA’s Mars Express, show dunes in huge impact craters.

This particular crater is 48km wide and on its floor can be seen sickle-shaped dunes known as barchans, and parallel ridges of dunes called transverse dunes.

An image from the High Resolution Stereo Camera’s nadir channel (ESA/DLR/FU Berlin)

The difference in colours is likely to be caused by sediments swept across the Martian landscape by what are thought to be south-easterly winds.

With the crater situated in Mars’ southern highlands – not too far south of Tharsis, the largest volcanic province on Mars and home to Olympus Mons – there’s likely to be vast amounts of basalt, fine pyroclastic deposits and ash to cover the crater’s floor.

The dune-filled crater rendered in 3D (ESA/DLR/FU Berlin)

Impact craters can act as traps for sediments that have been blown from elsewhere, and this particular region has a lot of craters that host a lot of dunes.

Barchans are the most common dune type found on Mars, and are also prevalent in Earth’s deserts. The shallower slope faces the wind, while the “horns” of the dune face the direction the wind is blowing.

That, combined with images of other dunes in the region, mean a south-eastern wind can be assumed.

The images were taken by the High Resolution Stereo Camera on Mars Express on May 16, with different channels used to create the varying perspectives and colour views.


More in this Section

Oscar Pistorius injured in prison brawl over phone call

Mysterious cigar-shaped object could be alien spacecraft, scientists say

Bangladesh condemns US attack in which citizen is the suspect

New York subway blast suspect's family say they are heartbroken and saddened


Lifestyle

No wee feat: Daniel back in the charts with new album this Christmas

The League Of Gentlemen sketch troupe back on TV screens after 15 years

Get ready for the Jedi in latest Star Wars instalment

A heavy burden for such young shoulders caring for parents this Christmas

More From The Irish Examiner