Small building (2–3 stories)-sized asteroid 2025 YJ10 will safely pass Earth on January 20, 2026

Article created on April 01, 2026. Last updated on April 01, 2026.

Quick Summary

Asteroid Flyby Overview

A building-sized asteroid swept past Earth at a safe distance on January 20, 2026.

How Big Is 2025 YJ10?

This asteroid spans about 29.0 meters (95.1 feet), roughly the size of a multi-story building.

Could It Hit Us?

Astronomers assured there was no threat of impact from this object during its January 20, 2026 flyby.

What Would Happen If It Hit Earth?

An asteroid this size could cause significant regional devastation if it ever impacted, flattening forests or damaging towns.

Historical Context

The Tunguska event in 1908, thought to involve a ~50-meter asteroid, leveled over 800 square miles of Siberian forest.

Upcoming Close Approaches

Apophis will pass extremely close in 2029.

About Near-Earth Asteroids

Near-Earth asteroids are remnants from the solar system's formation, and NASA tracks over 35,000 of them.

Conclusion

Such objects are rare and carefully tracked, and no collision is predicted for this asteroid.