Every year on June 30, humans World Asteroid Day raises awareness about those ancient space rocks, hurtling through our solar system. ⁣ ⁣ The date was chosen because on June 30, 1908, the Tunguska event – when an asteroid is believed to have exploded in Siberia, Russia, leveling more than 2,150 sq km of forest.⁣ ⁣ #WorldAsteroidDay #AsteroidDay #SpaceScience #Astronomy #PlanetaryDefense #NASA #ESA #SpaceExploration #LookUp #ScienceMatters