No, this is 100% real. It's a meteor that recently passed over the US (last week)...thousands of people saw this.
This kind of thing happens every single day (in fact it is probably happening right now), but mostly in unpopulated/rural areas. And usually it's not this bright, this was an exceptionally bright meteor.
The Space Shuttle is scheduled to land in Florida this morning...not sure what time, but I'll let you guys know if I hear the sonic boom

It wouldn't be the first time I've heard a sonic boom from the Space Shuttle....there's been a few times that it's landed at Edwards Air Force Base in Lancaster, CA (about 90 miles from my home) and I've heard a very loud sonic boom.