It's Friday, June 30th, which means it's officially World Asteroid Day!
Science lovers will have more than 700 ways to celebrate the big day in 200 countries across the globe this year. In addition to Asteroid Day-themed events, there's a 24-hour webcast that will feature discussions with renowned speakers about space rocks and the possibility of an asteroid hitting the Earth. (say whaaaat?)
NASA will also run a special television program about its Planetary Defense Coordination Office, which tracks asteroids and other Near Earth Objects (NEOs).
International Asteroid Day marks the biggest asteroid crash to have ever occurred in recent history in 1908, when a near-Earth object measuring about 130 feet (40 meters) wide exploded above the Podkamennaya Tunguska River in Siberia and destroyed 800 square miles (2,072 square kilometers) of forest.