Asteroid Day is this Monday, June 30th! Join us for all-day festivities, including a full rim tour, exclusive exhibits, live presentations & expert talks, hands-on activities, followed by an evening of science talks, events, and stargazing at Lowell Observatory! Sign up for the full FREE Rim Tour, and get more info at www.asteroiddayaz.com or on our Events page at www.meteorcrater.com It's a great day of fun and learning! #AsteroidDay #asteroid #MeteorCrater #lowellobservatory #Arizona #northern

On February 15, 2013, a meteor exploded over Chelyabinsk, Russia, creating the most powerful atmospheric entry event in recorded history since the 1908 Tunguska explosion. The superbolide entered Earth's atmosphere at approximately 9:20 a.m. local time, traveling at over 40,000 miles per hour. The meteor measured roughly 20 meters in diameter and weighed an estimated 12,000-13,000 metric tons before its explosive disintegration. The airburst occurred at an altitude of about 18.5 miles above the

Simulation shows possible impact of asteroid hurtling towards Earth | The Sun