Overview

• Asteroid 2024 YR4, discovered in December 2024, now has a 3.8% probability of colliding with the Moon in December 2032, up from earlier estimates.
• NASA and other agencies are using the James Webb Space Telescope to track the asteroid and refine its trajectory and size estimates.
• The asteroid is estimated to be between 174 and 220 feet in diameter, roughly the size of a 10-story building.
• If the asteroid impacts the Moon, it would create a visible crater but would not affect the Moon's orbit or Earth's safety.
• The asteroid will remain observable until mid-2025 and will pass close to Earth again in 2028, offering further opportunities for study.