NASA's DART Mission_ Humanity's Successful Planetary Defense Test We tested planetary defense in 2022! NASA's DART mission successfully changed an asteroid's orbit. ESA's Hera mission will reveal the full impact. Learn how this cosmic billiard shot protected Earth and future possibilities. #NASADART, #AsteroidDeflection, #PlanetaryDefense, #SpaceImpact, #SaveEarth, #AsteroidMission, #NASA, #SpaceScience, #CosmicCollision, #science #HeraMission #viral