According to WTOP, it's been told by the U.S. Naval Observatory that the light was "a fireball," which the American Meteor Society defines as "another term for a very bright meteor, generally brighter than magnitude -4, which is about the same magnitude of the planet Venus in the morning or evening sky."
Anyone out there see it?
Update at 9:12 a.m. ET. Size Of A Basketball:
The rock that flashed across the sky Wednesday night was probably about the size of a basketball, Geoff Chester of the Naval Observatory just told WTOP.
Meanwhile, if you're anywhere from South Carolina up through the Mid-Atlantic and into New England on Friday at 11:27 p.m ET, you might want to go out and look up.