RT @AsteroidEnergy: RT @RonBaalke OTD in 1908, a meteor exploded over #Tunguska, Russia, knocking down 80 million trees.
#AsteroidDay https://t.co/mE8xfWiBrs
RT @AsteroidEnergy: RT @RonBaalke OTD in 1908, a meteor exploded over #Tunguska, Russia, knocking down 80 million trees.
#AsteroidDay https://t.co/mE8xfWiBrs