NASA’s DART spacecraft slammed into the asteroid Dimorphos at a spot between two boulders during last September’s first test of a planetary defense system, sending debris hurtling into space and changing the rocky oblong-shaped object’s path a bit more than previously calculated.

Those were among the findings revealed by scientists on Wednesday in the most detailed account of the U.S. space agency’s proof-of-principle mission on using a spacecraft to change a celestial object’s trajectory – employing sheer kinetic force to nudge it off course just enough to keep Earth safe.

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“The DART test was phenomenally successful. We now know that we have a viable technique for potentially preventing an asteroid impact if one day we had the need to,” said planetary scientist Terik Daly of the Johns Hopkins University Applied Physics Laboratory in Maryland, lead author of one of the DART studies published in the journal Nature.

Read more: Reuters