A city-destroying asteroid whizzed past Earth at a distance of only 45,000 miles. It caught scientists off-guard.

National News

Animation showing the close encounter with Asteroid OK and Earth on July 25.

It is called “Asteroid OK,” but what wasn’t OK was how this particular space rock escaped the notice of astronomers until a few days before its close encounter with Earth.

Estimated to be between 187 feet and 427 feet in diameter, the 15-mile-per-second bit of prehistoric debris was discovered by astronomical teams in the U.S. and Brazil, and later confirmed by the NASA Jet Propulsion Lab in California.

How did everyone miss this particular asteroid until days before it passed just behind the Earth?

According to scientists, the asteroid was traveling from the direction of the Sun. That, and the small size of the rock, made it difficult to “see” on the telescopes and other devices that locate and track asteroids.

It was first observed on July 24. It made it close pass by Earth on July 25.

Copyright 2020 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

Latest Stories

More Local News

Recent Videos

TGU Football

Dickinson Football

Hidden History: a lesser-known political party once had a foothold in North Dakota

COVID-19 and Socializing

Williston Family Speaks Out

Election Dates

Switching to In Person

Century Girl's Golf

Wednesday, September 23rd, 2020 - KX Storm Team Evening Forecast - Dave Holder

KX Storm Team Full Evening Forecast w/Tom Schrader 9/23

Shelley Lenz

Cramer Weighs in

Changes proposed to critical habitat rule

ND Teacher of the Year

Nursing Homes Plea

Bismarck man opens up about the 'stigma' of pumpkin spice

Amber's Wednesday Morning #OneMinuteForecast 9/23

Wednesday's Forecast: A few showers & storms with cooler temperatures


How we get those autumn colors

More Video

KX News Trending Stories

Don't Miss

More Don't Miss