UPDATED Sept. 26 at 7:20pm ET: IMPACT SUCCESS Stay on target! Today, our #DARTMission will make history in a full-scale #PlanetaryDefense test when it intentionally impacts the tiny moonlet of an asteroid, in an attempt to slightly nudge the moonlet's orbit around the larger asteroid. While this asteroid poses no threat to Earth, this mission will test technology that could be used to defend our planet against potential asteroid or comet hazards that may be detected in the future. 📺 Live coverage begins at 6pm EDT (2200 GMT): nasa.gov/live 💥 Impact at 7:14pm EDT 🛰 Learn all about DART & asteroids: solarsystem.nasa.gov (link in bio) #NASA #space #science #asteroids