A meteor streaked across the sky and exploded over central Russia on Friday, sending fireballs crashing to earth which shattered windows and damaged buildings, injuring more than 500 people.
People heading to work in Chelyabinsk heard what sounded like an explosion, saw a bright light and then felt a shockwave, according to a Reuters correspondent in the industrial city 950 miles east of Moscow.
The fireball, travelling at a speed of 19 miles per second according to Russia's space agency Roscosmos, had blazed across the horizon, leaving a long white trail in its wake which could be seen as far as 125 miles away.
Car alarms went off, windows broke and mobile phone networks were interrupted. The Interior Ministry said the meteor explosion had caused a sonic boom.
"I was driving to work, it was quite dark, but it suddenly became as bright as if it was day," said Viktor Prokofiev, 36, a resident of Yekaterinburg in the Urals Mountains.
"I felt like I was blinded by headlights," he said.
No fatalities were reported, but President Vladimir Putin, who was due to host Finance Ministry officials from the Group of 20 nations in Moscow, told Emergencies Minister Vladimir Puchkov to help those affected.
Here is video of the event.
Some are speculating that this meteorite might have some connection to the giant asteroid that passed very closely to earth at 2:24 Eastern Time today.
And here was Neil deGrasse's response via Facebook:
And here is Professor deGrasse explaining exactly what happened on the Today show this morning.
Yeah you know I think it is a very good time to start thinking about lighting a fire under our space program, before the next, and possibly closer, asteroid does it for us.