One of the 鈥渨eirdest and least understood鈥� areas of Mars, the enormous Hellas Impact Basin contains strange flowing landforms that bespeak of some specialized and large-scale geologic process having taken place. The HiRISE camera aboard NASA鈥檚 Mars Reconnaissance Orbiter recently captured the image above, showing what鈥檚 being called 鈥渓ava lamp terrain鈥� 鈥� stretched and contorted surface that looks like overworked modeling clay or pulled taffy鈥� or, with a bit of imagination, the melted, mesmerizing contents of a party light from another era.

At 1,400 miles (2,300 km) across, Mars鈥� Hellas Basin is one of the largest impact craters in the entire Solar System. Its vast interior sinks to a depth of about 23,000 feet (7152 meters) below Mars鈥� average surface elevation (Martian 鈥渟ea level鈥�, if you will) and thus its floor is often shrouded by haze and dust, making visual imaging difficult.

The 鈥渓ava lamp鈥� terrain is just one of many different types of landforms that are found in the basin, although many of these banded features are found in the northwest area 鈥� which is also the deepest part of the basin. If there had been water in the region at some point in the planet鈥檚 history, it would have concentrated there.

Although the texture at first appears as if it could be volcanic in origin, it鈥檚 thought that flowing water or ice may actually be the source.

Researchers are currently working to determine how the Hellas Basin became so smoothly sculpted. Nicolas Thomas, Professor of Experimental 麻豆淫院ics at the University of Bern, Switzerland, told Universe Today:

鈥淭here are a lot of very interesting images from this area and we are trying to get more data (including stereo) to understand better what鈥檚 going on and to try to establish what process is responsible for the numerous bizarre features we see. We are hoping to make some more progress in the next few months.鈥�

This hypothesis is also in line with the possibility of Hellas Basin having once been a giant lake.

鈥淭ogether with the observations of isolated areas and the lack of obvious caldera(s), it is difficult to envisage a volcanic origin for these features and we currently tend towards a mechanism involving ice,鈥� Thomas stated in an abstract of a presentation given at the Europlanet Conference in 2010.

Read the full abstract , and see this and more high-resolution images from Mars on the .