This image from NASA's Mars Odyssey spacecraft displays dust devil tracks on the surface of Mars. Most of the lighter portions of the image likely have a thin veneer of dust settled on the surface.
Add image to your album
Email this page Post this page to your Facebook wall Tweet this page

Dust Devil Tracks


(Released 8 May 2002)
The Science
This image, centered near 50.0 S and 17.7 W displays dust devil tracks on the surface. Most of the lighter portions of the image likely have a thin veneer of dust settled on the surface. As a dust devil passes over the surface, it acts as a vacuum and picks up the dust, leaving the darker substrate exposed. In this image there is a general trend of many of the tracks running from east to west or west to east, indicating the general wind direction. There is often no general trend present in dust devil tracks seen in other images. The track patterns are quite ephemeral and can completely change or even disappear over the course of a few months. Dust devils are one of the mechanisms that Mars uses to constantly pump dust into the ubiquitously dusty atmosphere. This atmospheric dust is one of the main driving forces of the present Martian climate.

The Story
Vrrrrooooooooom. Think of a tornado, the cartoon Tasmanian devil, or any number of vacuum commercials that powerfully suck up swirls of dust and dirt. That's pretty much what it's like on the surface of Mars a lot of the time. Whirlpools of wind called

Image details

ID#:
PIA03791

Date added:
2002-05-24

Target:
Mars

Mission:
2001 Mars Odyssey

Spacecraft:
2001 Mars Odyssey

Instruments:
Thermal Emission Imaging System

Rating:



Views:
2,354

Full-Res TIFF:
PIA03791.tif (1.94 MB)

Full-Res JPG:
PIA03791.jpg (0.63 MB)

Image credit:
NASA/JPL/Arizona State University