Mountain-sized-sized asteroid 2009 SW19 will safely pass Earth on March 27, 2026

Article created on March 27, 2026.

Quick Summary

Asteroid Flyby Overview

A mountain-sized asteroid will pass Earth at a safe distance on March 27, 2026, observed by international astronomers.

How Big Is 2009 SW19?

At 465.0 meters (1525.6 feet), this asteroid is as large as many terrestrial mountains.

Could It Hit Us?

There is no threat posed by this massive asteroid during its March 27, 2026 flyby.

What Would Happen If It Hit Earth?

An impactor of this scale could trigger continental devastation and secondary global climate effects.

Historical Context

Asteroids like 1950 DA, over 1 km in size, are rare but closely monitored centuries ahead of possible risks.

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

Space agencies around the world prioritize discovering and tracking objects of this size.