1. RUSSIAN METEOR OMG! An undetected meteorite passed over the Chelyabinsk region in the Ural Mountains and created a sonic boom that broke a lot of windows and injured people with glass. The Bad Astronomy blog has an initial roundup of videos from the event, complete with what I am sure is the Russian for “HOLY SHIT, IT’S A GIANT FIREBALL!”
2. Scientists are pretty sure the Russian event is unrelated to another asteroid that will buzz Earth today: Asteroid 2012 DA14. You can watch it live from several observatories (assuming the math on the near-miss is right)–again, Bad Astronomy has a good roundup at the link.
3. I took the day off so I’m going to be wearing yoga pants and keeping a close eye on the sky.