DART impact altered Dimorphos–Didymos heliocentric orbit — first human change to a body's path
NASA's DART spacecraft deliberately impacted the asteroid moonlet Dimorphos in 2022, not only shortening its orbit around primary Didymos but measurably shifting the binary pair's heliocentric path. New 3D reconstructions of the ejecta reveal more complex mass and velocity distributions than earlier models assumed.