NASA confirms that its DART spacecraft ‘nudged’ the asteroid Dimorphos into a new orbit.
that the Double Asteroid Redirection Test spacecraft would ‘nudge’ the asteroid Dimorphos closer to its partner, Didymos, and cut its orbit time around that rock by 10–15 minutes. At an 11 October press conference, researchers confirmed that DART in fact cut the orbit time by around 32 minutes.
“This is a watershed moment for planetary defence, and a watershed moment for humanity,” said NASA administrator Bill Nelson.Determining whether the mission succeeded relied on more than a half dozen telescopes around the world. Ground-based optical telescopes can’t resolve Didymos and Dimorphos, which are millions of kilometres from Earth and only a few hundred metres across; they instead see the pair as a single point in the night sky.
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