Latest Planetary defense Stories
Mars may be helping to shape the surface of some near-Earth asteroids, according to a new study published in the journal Icarus.
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.
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.
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.
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.
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 announced its Wide-field Infrared Survey Explorer (WISE) will be coming out of retirement to track near-Earth objects (NEOs).
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 Î”V (change in velocity) than the Moon. In the United States, NASA...
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 Î”V 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...
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...
- A trick or prank.