TV WORTH WATCHING:

NOVA: METEOR STRIKE

PBS, 9 p.m. ET; 3/27/2013 

On February 15, 2013, an asteroid crashed into the earth’s atmosphere, raining unexpected light and matter over the Ural Mountains in Russia and sparking all sorts of questions. For example, what’s the difference between meteors, meteoroids and meteorites again? This new Nova, coming to TV only six weeks after the Siberian event, answer those questions, and a lot more. Check local listings.

-David Bianculli