The near-Earth object was thought to pose a slight risk of impacting Earth in 2068, but now radar observations have ruled that out. After its discovery in 2004, asteroid 99942 Apophis had been ...
impact of near-Earth object (NEO) 99942 Apophis (formerly 2004MN4). 2004MN4) might warrant a near-term space mission to the asteroid. The purpose of this mission would be to place an active radio ...
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