Asteroid 2003 MH4

Asteroid 2003 MH4: A 335-Meter Eiffel Sized Space Rock Approaches Earth at 50,400 km/h

Asteroid 2003 MH4, a massive 335-meter rock traveling at 50,400 km/h, passed safely by Earth on May 24, 2025. Though classified as a Potentially Hazardous Asteroid, it posed no threat during this flyby. NASA tracked its trajectory closely, using it as a key data point for future planetary defense strategies. Learn what makes asteroids dangerous, how we monitor them, and what you can do to stay informed and prepared.