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A spacecraft that plowed into a small, harmless asteroid millions of miles away succeeded in shifting its orbit, NASA said Tuesday in announcing the results of its save-the-world test.
It took days of telescope observations to determine how much the impact altered the asteroid's path around its companion, a bigger space rock.
It took days of telescope observations to determine how much the impact altered the asteroid's path around its companion, a bigger space rock.
Millenia ago, a singular asteroid wiped out the dinosaurs, and for decades, scientists have been exploring the possibility of this happening again.
By targeting two asteroids instead of one in NASA's DART mission, humanity's first planetary defense test, the U.S. space agency greatly reduced the experiment's cost.