A meteorite burst through the atmosphere over Russia, injuring about 500 people. It happened in Siberia and was actually captured on video.
Car dashboard cameras and phones captured video of the meteorite -- a blinding flash of light, streaking across the sky.
Chaos followed as fragments slammed into the ground. Witnesses say they thought a war had broken out.
The meteorite shattered windows and damaged buildings; it knocked down a wall at a zinc factory.
The Russian government has confirmed more than 400 people were injured, mostly from broken glass.
The Russian Academy of Sciences estimates the meteorite weighed about 10 tons and entered the Earth's atmosphere at a speed of at least 33,000 mph.
Meanwhile, scientists said the meteorite was not related to an asteroid that will fly dangerously close to Earth Friday.
A chunk of space rock big enough to level a city is hurtling towards our planet eight times faster than a speeding bullet.
Scientists say the asteroid will zoom past Earth at over 17,000 mph, missing our planet by just 17,000.
The 130,000 metric ton asteroid called DA-14 is the size of half a football field, and it will be much closer than the moon.
It will travel between Earth and the roughly 600 satellites around us, possibly even smashing one to bits on its way by.
The last direct impact from an asteroid came in 1908. It hit in the middle of Siberia, decimating a thousand miles of trees, but fortunately no people.
"I think the big story is that we saw this a year ahead of time," Jay Melosh, a professor at Purdue University, said. "So we're in an era now that we have good enough observatories; we have observing programs that can actually see asteroids that might hit the Earth long before they approach."
The asteroid is too dim to see with the naked eye, so scientists will use ground-based telescopes to observe DA-14.