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Animation of asteroid flying by the Earth 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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Meteorite from Asteroid 2008 TC3 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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 The terminal trajectory for Earth impacting asteroid 2008 TC3 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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A gravity tractor would fly near an asteroid and gravitationally nudge it off course. Image courtesy of Dan Durda/FIAAA/B612 Foundation 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 Apophis from Arecibo
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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