Photos
Article

This graphic shows the orbits of all the known Potentially Hazardous Asteroids (PHAs), numbering over 1,400 as of early 2013. These are the asteroids considered hazardous because they are fairly large (at least 460 feet or 140 meters in size), and because they follow orbits that pass close to the Earth's orbit (within 4.7 million miles or 7.5 million kilometers). But being classified as a PHA does not mean that an asteroid will impact the Earth: None of these PHAs is a worrisome threat over the next hundred years. By continuing to observe and track these asteroids, their orbits can be refined and more precise predictions made of their future close approaches and impact probabilities.

 

More information about asteroids and near-Earth objects is at: http://www.jpl.nasa.gov/asteroidwatch.

 

Files
High resolution version of the photo above

High resolution version of the photo above

343 days ago
Other Popular Articles
 
Comments
Order by: 
Per page: 
 
  • There are no comments yet
The Social Network Buzz - Comment using your Facebook, AOL, Hotmail or Yahoo! account
Info
Administrator
The Black Vault Owner/Operator
08.13.2013 (343 days ago)
Main Space
481 Views
0 Subscribers
All News by Administrator
Share This Article
Rate
1 votes
Related News
A newfound asteroid will safely pass Earth on June 8 from a distance of about 777,000 miles (1.25 million kilometers), more than three times farther away than our moon.
Main Space
46 days ago · From Administrator
An enormous asteroid – approximately the size of an aircraft carrier – is due to zip past Earth on Sunday.
Main Space
47 days ago · From Administrator
Space rocks big enough to destroy a city hit the Earth much more often than thought, according to an estimate by a private group devoted to preventing disaster from such orbital killers.
Main Space
91 days ago · From Administrator
A collage of radar images of near-Earth asteroid 2006 DP14 was generated by NASA scientists using the 230-foot (70-meter) Deep Space Network antenna
Main Space
147 days ago · From Administrator
NASA and Planetary Resources Inc., of Bellevue, Wash., are partnering to develop crowd-sourced software solutions to enhance detection of near-Earth objects
Main Space
240 days ago · From Administrator
Orbits of Potentially Hazardous Asteroids (PHAs)