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Latest Planetary defense Stories

mars asteroids nasa
2013-11-19 04:23:31

Mars may be helping to shape the surface of some near-Earth asteroids, according to a new study published in the journal Icarus.

New Analysis Chelyabinsk Meteor
2013-11-07 12:38:14

A series of recently released papers dealing with the meteor that exploded over Chelyabinsk, Russia, in Februar,y brought forth two startling conclusions: the damage could have been much worse, and these types of events could be much more common than previously thought.

Weather Satellites Captured Chelyabinsk Meteor Data
2013-10-23 07:39:59

Scientists studying the Chelyabinsk meteor that blazed a trail over Russia’s Ural Mountains on February 15, 2013 have been able to track the trajectory of the fireball using several weather satellites.

Newly Discovered Asteroid Has Slight Chance Of Impacting Earth
2013-10-18 12:02:43

Astronomers working at the Crimean Astrophysical Observatory in Ukraine found a new asteroid on October 13, 2013 and NASA confirmed it came within about 4.2 million miles of Earth on September 16. New estimates predicts a slight chance of impact in 2032.

Asteroid Don Quixote Is Actually A Comet
2013-09-11 04:25:30

When is a near-Earth asteroid not a near-Earth asteroid? When an international team of researchers discover that the object has been misidentified by the scientific community for the past three decades, and is actually a comet.

Close To One Hundred Ideas Selected For Possible NASA Asteroid Missions
2013-09-04 13:25:34

NASA has selected 96 asteroid initiative ideas about how to protect Earth from asteroids and find a space rock for humans to explore. The list was dwindled down from more than 400 submissions the space agency received since June.

NASA Explorer Leaves Retirement Track Space Rocks
2013-08-22 09:47:16

NASA announced its Wide-field Infrared Survey Explorer (WISE) will be coming out of retirement to track near-Earth objects (NEOs).


Latest Planetary defense Reference Libraries

3_973757bf6370bb40a6fd131d38ec6bb12
2004-10-19 04:45:40

Near-Earth Object -- Near-Earth Objects (NEO) are asteroids, comets and large meteoroids whose orbit intersects Earth's orbit and which may therefore pose a collision danger. Due to their size and proximity, NEO's are also more easily accessible for spacecraft from Earth and are important for future scientific investigation and commercial development. In fact, some near-Earth asteroids can be reached with much less ΔV (change in velocity) than the Moon. In the United States, NASA...

3_8254e27b9fccec1aaab3b9785e39d79f2
2004-10-19 04:45:40

Near-Earth Asteroid -- Near-Earth asteroids (NEAs) are asteroids whose orbit intersects Earth's orbit and which may therefore pose a collision danger, as well as being most easily accessible for spacecraft from Earth. In fact, some near-Earth asteroids can be reached with much less ΔV than the Moon. The most famous near-Earth asteroid is 433 Eros that was visited by NASA's Near Earth Asteroid Rendezvous probe. A few hundred such near-Earth asteroids are known, ranging in size up...

3_24d9d2ae65287658880cc277c0b4ea022
2004-10-19 04:45:40

433 Eros -- The asteroid 433 Eros was named after the Greek god of love Eros. It is an S-type asteroid approximately 13 x 13 x 33 km in size, the second-largest near-Earth asteroid. It was visited by the NEAR Shoemaker probe, which first orbited it taking extensive photographs of its surface and then in 2001 at the end of its mission was landed on the asteroid's surface using only its maneuvering jets. Depending on where they stood on Eros, a person who weighed 200 pounds (90...

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Word of the Day
shavie
  • A trick or prank.
The word 'shavie' is related to 'shave'.