near-Earth asteroid

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near-Earth asteroid

(NEA) Any asteroid that has a chance of hitting our planet, specifically any member of the Apollo, Amor, and Aten groups. Although the annual probability of the Earth being struck by a large asteroid or comet is extremely small, the consequences of such a collision are so catastrophic that it was thought prudent in the USA to assess the nature of the threat and to be prepared to deal with it.
References in periodicals archive ?
Benson realizes that the Near Earth Asteroid Prospector will be navigating not only the depths of space but also a realm that is in some ways even more forbidding: the uncharted legal territory, and unpredictable politics, of owning property out there.
19, 1998, by the Massachusetts Institute of Technology Lincoln Near Earth Asteroid Research (LINEAR) program near Socorro, New Mexico.
The ponds appear in the last images taken by the Near Earth Asteroid Rendezvous-Shoemaker craft before it hit Eros.
After a four-year journey, on February 14th the Near Earth Asteroid Rendezvous spacecraft successfully eased into a wide, 370-by-323-kilometer polar orbit around the asteroid 433 Eros.
Near, which stands for Near Earth Asteroid Rendezvous, is due to spend a year studying the 21-mile long potato-shaped rock.
1998 QE2 was discovered in August 1998 by the Massachusetts Institute of Technology's Lincoln Near Earth Asteroid Research program.
Mathilde's low density, measured in 1997 by the NEAR (Near Earth Asteroid Rendezvous) Shoemaker craft, supports the notion that the asteroid is a porous collection of gravitationally bound chunks.
The Near Earth Asteroid Rendezvous spacecraft automatically fired for 57 seconds and then signalled success to Earth.
This week, Trombka, the principal investigator of the gamma-ray spectrometer aboard the NEAR (Near Earth Asteroid Rendezvous) Shoemaker spacecraft, shared some of his team's findings with SCIENCE NEWS.
Had things gone according to plan, NASA's Near Earth Asteroid Rendezvous spacecraft would now be snugly in orbit around minor planet 433 Eros.
That comet, now designated C/1999 S4, as well as C/2001 A2, were discovered by the Lexington, Mass.-based team of astronomers known as LINEAR (for Lincoln Near Earth Asteroid Research).
Sunday, December 20th, was a nail-biting day for ground controllers of the Near Earth Asteroid Rendezvous (NEAR) spacecraft.