2 asteroids to zoom closer than moon in less than 24 hours

Asteroids 2021 FO1 and 2021 FH will have close approaches to Earth on March 23, 2021 (UTC). 2021 FO1 is ~14 feet wide (~4 meters) and will fly about 200,000 miles away (321,869 km) from Earth. 2021 FH is ~52 feet wide (~16 meters) and will fly about 146,000 miles away (~234,964 km). Credit: Space.com | orbit animations: NASA/JPL-Caltech | produced & edited by [Steve Spaleta](http://www.twitter.com/stevespaleta)