NASA scientists say that meteor explosions like the one last week injuring 1,200 people in Chelyabinsk, Siberia, are 100-year events. The last time a big meteor crashed into our planet, incinerating 80 million trees in the Tunguska region of Siberia, was in 1908. So if you’re feeling a bit panicky after Chelyabinsk, relax. Odds are it’ll be a century before something like that happens again – though it’s understandable if you decide to cross the Trans-Siberian railroad off your bucket list.
A meteorite streaked across the sky and exploded over central Russia on Friday, raining fireballs over a vast area and causing a shock wave that smashed windows, damaged buildings and injured 1,200 people.