We Finally Crashed a Spacecraft Into an Asteroid — Here’s What We Found

In 2022, NASA deliberately crashed a spacecraft into an asteroid at 22,000 km/h. The result was 3x bigger than predicted. Here's what NASA's DART mission found — and why it matters for the asteroid Apophis in 2029. On September 26, 2022, NASA's DART spacecraft slammed into the asteroid Dimorphos — the first time in history humanity deliberately changed the orbit of a space rock. Scientists predicted the impact would shift its orbit by about 10 minutes. The actual result was 33 minutes — more than three times the prediction. This is the full story: how NASA built a spacecraft designed to destroy itself, what happened in the final seconds before impact, the surprising physics that made the deflection so much stronger than expected, and why this mission is directly connected to asteroid Apophis — which will make its closest approach to Earth in April 2029. ⏱ TIMESTAMPS 0:00 — Intro 0:58 — The problem we've ignored for 66 million years 2:53 — The asteroid arriving in 2029 5:22 — How do you measure an asteroid's orbit change? 7:01 — Building a spacecraft designed to die 9:35 — The moment of impact — and the surprise 12:11 — Hera and the harder question 📡 SOURCES All space footage and imagery courtesy of NASA. NASA DART Mission: https://science.nasa.gov/mission/dart NASA Planetary Defense: https://www.nasa.gov/planetarydefense NASA Center for Near Earth Object Studies: https://cneos.jpl.nasa.gov ESA Hera Mission: https://www.esa.int/Space_Safety/Hera NASA OSIRIS-APEX (Apophis): https://science.nasa.gov/mission/osir... 🔔 Subscribe to join the journey:    / @lonecolonist1   #DART #NASA #PlanetaryDefense #Asteroid #AsteroidDeflection #Apophis #SpaceExploration #SpaceScience #Astronomy #NASAMission