Asteroid 2024 YR4, first discovered in December 2024, triggered a first-ever notification from the International Asteroid Warning Network (IAWN) on January 29, 2025. The early calculations predicted an impact probability of 1.3% with Earth on December 22nd, 2032, and estimated its size to be between 40 and 90 meters.
Asteroid impact threat estimates improved for the Earth and the moon
