![]() Corinne Purtill, Anchorage Daily News, 15 Feb. 2023 Last year, its Double Asteroid Redirection Test, or DART, spacecraft deliberately crashed into a rock 7 million miles away to see whether humans could change the trajectory of a celestial object. ![]() 2023 An appulse refers generally to when two celestial objects appear close together, according to NASA. ![]() Adjective The approach was the closest the celestial object has made to Earth since it was first discovered in 2011.
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