Asteroid 2024 YR4: The Rock That Scared the World for Six Weeks — and Then Didn’t

Artist's illustration of NASA's DART spacecraft approaching an asteroid — the planetary-defence mission that showed an asteroid's course can be changed

About 6 min readIn early 2025, a newly found asteroid 40 to 90 metres wide had a 3 per cent chance of hitting Earth in 2032 — the highest risk rating in twenty years. Then the telescopes kept watching, the odds collapsed, and by 2026 even the Moon was safe. This is how a scare ends.