NASA reports that it observed a 227kg meteor, around 60cm in diameter, which zipped through the Earth's atmosphere above Pittsburgh last night. If you were in the vicinity, you may well have just noticed it.
The lump of rock passed by at about 72,420km/h. While it fell from visibility at an altitude of 20km, scientists predict that fragments likely fell to the ground east of Kittanning, PA. The video above was captured by one of the black-and-white cameras that makes up NASA's 'All Sky Fireball Network.' Set up by the Meteoroid Environment Office, it's a series of cameras pointing up the night sky across the country, found in schools and other public spaces, that are put in place to record occurrences just like this. Clearly, it's working! [NASA via Verge]
Video: NASA/Bill Cooke