Administrator GBT Asteroid passing Earth today LIVE: How to watch a mile-long asteroid zip by tonight Live Asteroid Tracking ** AN ASTEROID measuring up 1.2 miles across will be visible on a 'close approach' past Earth this week. Find out how to watch the flyby live online tonight. Officially dubbed Asteroid (52768) 1998 OR2, the spa... ASTEROID Decade Radar Solution Apr 29, 2020 (2077/01/17)