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NASA’s Planetary Radar Tracks Two Large Asteroid Close …
Watch: Asteroid 'Fireball' Seen After Only Ninth-Ever Pre-Impact ...
NASA simulates how the U.S. might respond to asteroid …
Next Five Asteroid Approaches - NASA Jet Propulsion Laboratory …
Asteroid Watch - NASA Jet Propulsion Laboratory (JPL)
Two Massive Asteroids Will Fly Past Earth This Week. Here's What …
Asteroid about to zoom oh-so-close to Earth, NASA says
An asteroid is coming exceedingly close to Earth, but will miss
Eyes on Asteroids - NASA/JPL - NASA's Eyes
An asteroid had 'a very close encounter' with Earth tonight : NPR