NASA: Asteroid comes closest to Earth this afternoon
As a three-kilometer-wide asteroid nears its closest approach to Earth this afternoon, there's no fear of a collision but space buffs are eagerly getting a close up view as it passes us by.
As a three-kilometer-wide asteroid nears its closest approach to Earth this afternoon, there's no fear of a collision but space buffs are eagerly getting a close up view as it passes us by.
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