Subscribe free to our newsletters via your
. GPS News .




DEEP IMPACT
NASA used satellite to follow plume left by exploding meteor
by Staff Writers
Greenbelt, Md. (UPI) Aug 15, 2013


disclaimer: image is for illustration purposes only

NASA says sensitive instruments on a satellite allowed them to track the dust plume created by the meteorite that exploded over Russia in February for months.

NASA atmospheric physicist Nick Gorkavyi and his colleagues in Greenbelt, Md., were able to use the satellite data to record a never-before-seen view of the atmospheric aftermath of the explosion of the meteor over the Russian city of Chelyabinsk -- coincidentally Gorkavyi's home town.

That explosion deposited hundreds of tons of dust up in the stratosphere, allowing NASA's Suomi NPP satellite to gather unprecedented measurements of how the material formed a thin but cohesive and persistent stratospheric dust belt, NASA reported Wednesday.

"We wanted to know if our satellite could detect the meteor dust," Gorkavyi said. "Indeed, we saw the formation of a new dust belt in Earth's stratosphere, and achieved the first space-based observation of the long-term evolution of a bolide plume."

The satellite data showed that four days after the explosion the faster, higher portion of the plume had snaked its way entirely around the Northern Hemisphere and back to Chelyabinsk.

And at least three months later a detectable belt of bolide dust persisted around the planet, the researchers said.

Modern technology offers an improved level of understanding of injection and evolution of meteor dust into the atmosphere, including from giant cosmic impacts in Earth's past, Gorkavyi said.

"Of course, the Chelyabinsk bolide is much smaller than the 'dinosaurs killer,' and this is good: We have the unique opportunity to safely study a potentially very dangerous type of event," he said.

.


Related Links
Asteroid and Comet Impact Danger To Earth - News and Science






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








DEEP IMPACT
Skywatchers readying for cosmic light show from meteor shower
Huntsville, Ala. (UPI) Aug 9, 2013
The imminent Perseid meteor shower, the brightest and showiest of such events, could bring a light show of as many as 70 shooting stars an hour, experts say. Sunday night into early Monday and again Monday night into early Tuesday will be the best times to see the annual meteor shower, they said. A cloud of comet dust annually brings this shower, among the brightest and most reli ... read more


DEEP IMPACT
Highest winter losses in recent years for honey bees in Scotland

Nepal steps up poultry cull to combat bird flu

Fonterra executive resigns after milk scare

New Zealand PM to make milk scare apology in China

DEEP IMPACT
Scientists Find Asymmetry in Topological Insulators

Speed limit set for ultrafast electrical switch

NRL Researchers Discover Novel Material for Cooling of Electronic Devices

Nanotechnology breakthrough is big deal for electronics

DEEP IMPACT
NASA says software will speed up air travel by streamlining departures

Cathay Pacific swings to first-half net profit

Agusta's Indian helicopter deal set for more scrutiny

Chile will upgrade old patrol aircraft rather than buy new ones

DEEP IMPACT
High temperature capacitor could pave the way for electric vehicle

China vehicle sales growth slows in July

S. Korea tests 'electric road' for public buses

BMW China venture to recall more than 140,000 cars: officials

DEEP IMPACT
US investigating JPMorgan's China hiring

US senator heads to Asia to meet top leaders

Glencore-Xstrata cuts back on stalled Philippine mine

PayPal keen on collaboration for cash-free future

DEEP IMPACT
One tree's architecture reveals secrets of a forest

Could planting trees in the desert mitigate climate change

Wasps being used to fight tree disease

Drought making trees more susceptible to dying in forest fires

DEEP IMPACT
Thai villagers mistake Google worker for government snoop

Norway says no to Apple request to photograph Oslo for 3-D maps

Africa's ups and downs

Lockheed Completes Solar UV Imager For GOES-R Enviro Tests

DEEP IMPACT
SU Chemists Develop 'Fresh, New' Approach to Making Alloy Nanomaterials

Heterogeneous nanoblocks give polymers an edge

Size matters in nanocrystals' ability to adsorb release gases

Gold nanoparticles improve photodetector performance




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - 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