WASHINGTON: NASA's DART spacecraft slammed into the asteroid Dimorphos at a spot between two boulders during last September's first test of a planetary defence system, sending debris hurtling int
at a spot between two boulders during last September's first test of a planetary defence system, sending debris hurtling into space and changing the rocky oblong-shaped object's path a bit more than previously calculated.
The Double Asteroid Redirection Test spacecraft collided on Sep 26 at about 22,530kmh into Dimorphos, an asteroid about 150m in diameter, roughly 11 million km)from Earth. Dimorphos is a moonlet of Didymos, which is defined as a near-Earth asteroid and has a shape like a top spinning in space with a diameter of about a 780m. Neither object imperils Earth.
Prior to the impact, the orbital period was 11 hours and 55 minutes. It now is 11 hours and 22 minutes. NASA's previous estimate, announced in October, was anThe scientists gave a blow-by-blow account of how the collision unfolded.
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