OUR N E W   W E B   S I T E   "WORLD AIR FORCE NEWS"
 
  
 
 

WORLD AIR WAR HISTORY


 
  HOME > Space Technology News >

Mars bombarded by over 200 space rocks per year: NASA

Mars bombarded by over 200 space rocks per year: NASA

Scientists have estimated that Mars is bombarded by more than 200 small asteroids or bits of comets per year forming craters at least 3.9 meters across, US space agency NASA said.

It said these asteroids or comet fragments typically are no more than 1 to 2 meters in diameter, too small to reach the ground on Earth. These space rocks cause craters on Mars because the Red Planet has a much thinner atmosphere, reported Xinhua.

"It's exciting to find these new craters right after they form," said Ingrid Daubar of the University of Arizona, Tucson, lead author of the paper published online in the journal Icarus.

"It reminds you Mars is an active planet, and we can study processes that are happening today."

According to NASA, researchers have identified 248 new impact sites on parts of the Martian surface over the past decade, using images from the Mars Reconnaissance Orbiter to determine when the craters appeared.

The 200-per-year planetwide estimate is a calculation based on the number found in a systematic survey of a portion of the planet, it said Wednesday, adding that earlier estimates pegged the cratering rate at three to 10 times more craters per year.


Source: Washington, bharatdefencekavach.com News - 16 May 2013

Photo: The US space agency NASA in Mars (Photo by NASA)


(16.05.2013)


 
  CONTINENTAL NEWS:

American Air Force News
African Air Force News
Asian Air Force News
European Air Force News
Middle Eastern AF News
Ocean Air Force News


• Science SEOSAT-Ingenio's lost promise for Earth observation

(28.11.2020)
Spain's satellite, the SEOSAT-Ingenio, was billed as the latest in high resolution land imaging technology. Originally, we presented what it would have done. But its launch vehicle...>>

• US Army Wants Electronic Jammer Weapon With Missile Defense Capabilities

(30.09.2020)
US Army officials unveiled plans on Tuesday for a vehicle-mounted electronic jamming system that will uniquely have the ability to jam incoming projectiles, fouling their targeting...>>

• Flight experiments for the air transport system of the future - New DLR IS­TAR re­search air­craft ar­rives in Braun­schweig

(20.02.2020)
Handover in the hangar of DLR’s Flight Experiments facility in Braunschweig together with representatives from science, industry, government and the media. Commissioning with first...>>

• Russia Wants Answers From NASA About ALCOHOL SMELL on ISS After Dragon Docking

(1.09.2019)
Last month, outside observers marked concerns with SpaceX's Dragon 2 programme after one of the crew capsules unexpectedly exploded during a static fire test....>>

• Boeing Invests in Commercial UAS Services Provider Robotic Skies

(4.06.2019)
Startup manages maintenance, inspection and alteration services for global manufacturers and operators of commercial unmanned aircraft systems....>>

• Russia Wants Answers From NASA About Alcohol Smell on ISS After Dragon Docking

(16.05.2019)
Last month, outside observers marked concerns with SpaceX's Dragon 2 programme after one of the crew capsules unexpectedly exploded during a static fire test....>>

• USAF test launches 2nd ICBM this month

(10.05.2019)
The U.S. Air Force has launched an unarmed intercontinental ballistic missile from California in the second such test this month. A Minutemen 3 missile roared out of a silo at Vand...>>

 



       info@xairforces.net Webmaster: REFLX DESIGN - © 2011 xairforces / Aviation Society,