. GPS News .




.
MARSDAILY
12-Mile-High Martian Dust Devil Caught In Act
by Staff Writers
Pasadena CA (JPL) Apr 05, 2012

A Martian dust devil roughly 12 miles (20 kilometers) high was captured winding its way along the Amazonis Planitia region of Northern Mars on March 14, 2012 by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. Despite its height, the plume is little more than three-quarters of a football field wide (70 yards, or 70 meters). Image credit: NASA/JPL-Caltech/UA. For a larger version of this image please go here.

A Martian dust devil roughly 12 miles high (20 kilometers) was captured whirling its way along the Amazonis Planitia region of Northern Mars on March 14.

It was imaged by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.

Despite its height, the plume is little more than three-quarters of a football field wide (70 yards, or 70 meters).

Dust devils occur on Earth as well as on Mars. They are spinning columns of air, made visible by the dust they pull off the ground.

Unlike a tornado, a dust devil typically forms on a clear day when the ground is heated by the sun, warming the air just above the ground.

As heated air near the surface rises quickly through a small pocket of cooler air above it, the air may begin to rotate, if conditions are just right.

The image was taken during late northern spring, two weeks short of the northern summer solstice, a time when the ground in the northern mid-latitudes is being heated most strongly by the sun.

The Mars Reconnaissance Orbiter has been examining the Red Planet with six science instruments since 2006.

Now in an extended mission, the orbiter continues to provide insights into the planet's ancient environments and how processes such as wind, meteorite impacts and seasonal frosts continue to affect the Martian surface today.

This mission has returned more data about Mars than all other orbital and surface missions combined.

Related Links
HiRISE
Mars News and Information at MarsDaily.com
Lunar Dreams and more




.
.
Get Our Free Newsletters Via Email
...
Buy Advertising Editorial Enquiries






.

. Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle



MARSDAILY
NASA Mars Orbiter Catches Twister in Action
Pasadena CA (JPL) Mar 08, 2012
An afternoon whirlwind on Mars lofts a twisting column of dust more than half a mile (800 meters) high in an image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. HiRISE captured the image on Feb. 16, 2012, while the orbiter passed over the Amazonis Planitia region of northern Mars. In the area observed, paths of many previous whir ... read more


MARSDAILY
New forage plant prepares farmers for climate changes

Farmers Use GIS Technology for a Growing World

Is rainfall a greater threat to China's agriculture than warming?

Worst rains in 14 years wash out Ecuadoran farmers

MARSDAILY
Giant piezoelectricity from ZnO materials, comparable with perovskite, was achieved

Quantum information motion control is now improved

Australian WiFi inventors win US legal battle

Researchers discover a new path for light through metal

MARSDAILY
Engine failure forces Cathay jet to turn back

China Southern committed to Airbus orders: report

Asia gets new budget airline eyeing Chinese flyers

South Africa, Singapore airlines fined for price-fixing

MARSDAILY
GM's China sales hit record high for March

Fuel-efficient autos drive sales higher

BMW, Guggenheim salvage Berlin 'lab' after threats

Japan auto sales soar by record 78.2% in March

MARSDAILY
US sees promise in China economic reforms

China boosts foreign investment quota

Argentina escalates quarrel with Spain

James Murdoch: heir apparent dogged by hacking scandal

MARSDAILY
Trees tell their own story to satellites

Forest-destroying avalanches on the rise due to clear-cut logging

Scientists clone 'survivor' elm trees

Report: Natural teak forests in decline

MARSDAILY
Key ice shelf in Antarctica has shrunk by 85 percent

ESA and NASA join forces to measure Arctic sea ice

NASA Sees Fields of Green Spring up in Saudi Arabia

Checking CryoSat reveals rising Antarctic blue ice

MARSDAILY
Nanoscale magnetic media diagnostics by rippling spin waves

Nanostarfruits are pure gold for research

Diatom biosensor could shine light on future nanomaterials

'Buckliball' opens new avenue in design of foldable engineering structures


Memory Foam Mattress Review

Newsletters :: SpaceDaily Express :: SpaceWar Express :: TerraDaily Express :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News

.

The content herein, unless otherwise known to be public domain, are Copyright 1995-2012 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement