Real life... I've read about it somewhere...
"only spotted 10 days ago"
"a third of a kilometer across, but it's traveling at 35 kilometers per second"
I keep being struck (pardon) by the idea that I haven't heard anything in years that wasn't described by SciFi decades ago. Heck, even wildly popular brainless candidates for president was long predicted by those wacko SciFi nuts.
One story was about an asteroid that never even really hit - clipped a peak in the Andes a tad - but the grazing passage through the atmosphere was described in wonderful detail from entrance to exit. If the overpressures didn't get you, the heat radiation would. Discoverer named it after his wife... but you've seen that in the movies haven't you. Hollywood steals from everybody.
I'd love to go back and re-read all that SciFi, and pretend it'll never happen.... (sigh)