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Report: Deflecting a Hazardous Near-Earth Object
April 2009
A short report on Near-Earth Object (NEO) hazard mitigation strategies
was developed in response to a request for information by the U.S. National
Research Council's Space Sciences Board on December 17, 2008 and for the
Planetary Defense Conference that took place 27-30 April 2009 in Granada
Spain.
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NASA Team Finds Riches in Meteorite Treasure Hunt
March 30, 2009
For the first time, scientists are studying recovered celestial
meteorites that have a definitive link with an asteroid from space. This
presents the science community an unprecedented opportunity to interpret
asteroid data and learn more about the origins and differentiations
between asteroids and may provide better answers about the formation of
our solar system.
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Asteroid 2008 TC3 Strikes Earth: Predictions and Observations Agree
November 4, 2008
A spectacular fireball lit up the predawn sky above Northern Sudan on October 7, 2008. This explosion was caused by the atmospheric entry of a small near-Earth asteroid, estimated to be no more than a few meters in diameter. Although such small impact events occur several times per year around the globe, this case was unprecedented because the asteroid was actually discovered the day before it reached the Earth and the impact location and time were for the first time predicted in advance.
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Near-Earth Object (NEO) Analysis of Transponder Tracking and Gravity Tractor Performance
October 9, 2008
A study, requested and funded by the B612 Foundation, was
carried out by JPL scientists to detemine the feasibility of using a
gravity tractor concept for use in NEO impact mitigation and to build
credibility for the concept.
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Predicting Apophis' Earth Encounters in 2029 and 2036
October 2007
Researchers at NASA/JPL, Caltech, and Arecibo Observatory have released the results of radar observations of the potentially hazardous asteroid 99942 Apophis, along with an in-depth analysis of its motion. The research will affect how and when scientists measure, predict, or consider modifying the asteroid's motion. The paper has been accepted for publication in the science journal "Icarus" and was presented at the AAS/DPS conference in Orlando, Florida in October of 2007.
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