Quantcast

Latest Dust devil Stories

Mars Rover Experiences Dust Devil
2012-11-15 14:44:39

Lee Rannals for redOrbit.com - Your Universe Online NASA announced on Thursday during a teleconference that its Curiosity rover has experienced its first whirlwind on Mars. Although the rover did not snap a photo of the whirlwind, Curiosity's Rover Environmental Monitoring Station (REMS) was able to help detect the dust devil. REMS detected brief dips in air pressure, along with a change in wind direction, leading NASA scientists to determine that there was a whirlwind passing by...

NASA Mars Orbiter Catches Serpent Dust Devil On Mars
2012-03-07 13:22:09

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 whirlwinds, or dust devils, are visible as streaks on the dusty surface. The active dust devil displays...

8b394f2cd735f44bfef8ed0cca9793781
2010-07-29 07:15:00

In its six-and-a-half years on Mars, NASA's Mars Exploration Rover Opportunity had never seen a dust devil before this month, despite some systematic searches in past years and the fact that its twin rover, Spirit, has seen dozens of dust devils at its location halfway around the planet. A tall column of swirling dust appears in a routine image that Opportunity took with its panoramic camera on July 15. The rover took the image in the drive direction, east-southeastward, right after a drive...

2009-07-14 13:57:38

U.S. scientists say they have combined three images taken seconds apart on Mars using various colored filters to create a portrait of a moving dust devil. The panoramic camera on NASA's Mars Exploration Rover Spirit was taking exposures through different filters during the 1,919th Martian day of Spirit's mission (May 27) as part of constructing a large color panorama, scientists at NASA's Jet Propulsion Laboratory said. Three westward shots, with several seconds intervening between them,...

b1951c7acb8a2aacc91d0865d95a36dc1
2008-09-12 08:55:00

NASA's Phoenix Mars Lander has photographed several dust devils dancing across the arctic plain this week and sensed a dip in air pressure as one passed near the lander. These dust-lofting whirlwinds had been expected in the area, but none had been detected in earlier Phoenix images. The Surface Stereo Imager camera on Phoenix took 29 images of the western and southwestern horizon on Sept. 8, during mid-day hours of the lander's 104th Martian day. The next day, after the images had been...

2008-06-18 09:01:07

The solar energy of sunshine heats the desert floor. Heat rises thence as plumes of hot air (this is what makes the desert scene wavy) that heat the bottom few meters of the atmosphere. That layer of heated air is gravitationally unstable. On occasion it rises as a high-power vortex called a dust devil. If we can put men on the moon, we should be able to make stationary dust devils and get wind power out of them. Volney Wallace Murray (c) 2008 Deseret News (Salt Lake City). Provided...

2008-01-10 14:17:01

Sweeping sands across the Sahara and other dune expanses are blown by more than just wind, scientists have discovered. Powerful electric fields spring up near the desert floor and propel sand grains into the air. By accounting for this electricity, researchers say they can design better climate change models, and even explain features of the dust on Mars. Scientists have long been at a loss to explain why sand sweeping across the desert doesn't bounce higher when the wind gets...

2008-01-03 09:21:53

Two robots the size of golf carts were given 90 days to squeeze as much science as possible from the barren, dust-swept terrain of Mars. After that, scientists expected nothing more from them than death. Nearly four years after their warranties expired, however, the Mars Explorations Rovers (MERs) "Spirit" and "Opportunity" continue to play productively in the red dirt. Spirit celebrates its fourth anniversary of Martian work on Jan. 4, the day it landed in 2004, followed by...

ab119cee7bfa32f3dbcb915417f3c4851
2005-11-08 16:20:00

NASA -- If a human with perfect vision donned a spacesuit and stepped onto the martian surface, the view would be as clear as this sweeping panorama taken by NASA's Mars Exploration Rover Spirit. That's because the rover's panoramic camera has the equivalent of 20-20 vision. Earthlings can take a virtual tour of the scenery by zooming in on their computer screens many times to get a closer look at, say, a rock outcrop or a sand drift, without losing any detail. This level of clarity is...


Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
Related