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Asteroid Watch - NASA Jet Propulsion Laboratory (JPL)
NASA’s Planetary Radar Tracks Two Large Asteroid Close …
Next Five Asteroid Approaches - NASA Jet Propulsion Laboratory …
NASA Analysis: Earth Is Safe From Asteroid Apophis for 100-Plus …
NASA System Predicts Impact of Small Asteroid
Eyes on Asteroids - NASA/JPL - NASA's Eyes
NASA System Predicts Small Asteroid to Pass Close by Earth This …
Apophis - NASA Science
NASA simulates how the U.S. might respond to asteroid …
'God of Destruction' asteroid Apophis will come to Earth in 2029 …