Dust Devils Have Left Dark Streaks All Over This Martian Crater
FEBRUARY 22, 2020 BY EVAN GOUGH
There may be no life on Mars, but there’s still a lot going on there. The Martian surface is home to different geological process, which overlap and even compete with each other to shape the planet. Orbiters with powerful cameras give us an excellent view of Mars’ changing surface.
The HiRISE (High Resolution Science Imaging Experiment) instrument on NASA’s Mars Reconnaissance Orbiter (MRO) shows us the changing nature of Mars. Their Picture of the Day series is a curated selection of some of the best images the camera has captured This recent HiRISE Picture of the Day helps drive the point home. It shows the goings-on in a small crater near Antoniadi Crater.
In this image, dust devils have left tracks in the crater floor, and scalloped dunes of sand add some artistic flair. As the dust devils move over the surface, they suck up the brighter colored surface material and leave tracks of darker, exposed material.
This animation shows how the appearance of the crater floor changes over time
More:
https://www.universetoday.com/145068/dust-devils-have-left-dark-streaks-all-over-this-martian-crater/
