[kach22i]

Asteroid the size of a city block just gave Earth a close shave
https://www.nbcnews.com/mach/science/asteroid-size-city-block-give-earth-close-shave-ncna873906

A fast-moving asteroid the size of a city block gave Earth a close shave today, zooming safely past at 6:05 p.m. EDT at a distance of about 126,000 miles. That's about half the distance from the Earth to the moon and the closest approach the asteroid has made in nearly 300 years, EarthSky.org reported.

The space rock, known as 2010 WC9, was moving at almost 29,000 miles per hour as it passed. It has a diameter of 60 to 134 meters, or roughly 200 to 400 feet — "as big across as a city block," Dr. Erin Ryan, an asteroid expert at NASA's Goddard Space Flight Center in Greenbelt, Maryland, told NBC News MACH in an email.......................

Good to know.

An asteroid roughly the size of 2010 WC9 collides with Earth only about once every 6,000 years, Chodas said. And as Dr. Amy Mainzer, another asteroid expert at the Jet Propulsion Laboratory, told MACH in December, “There are no objects that have been identified that are known to be on a collision course with Earth.”