Best-bets for Jan. 21: helpful meteors, hurtful models
1) “Nova” season-opener, 9 p.m., PBS. Asteroids (shown here) get a bad rap, what with bringing death, destruction and the end of dinosaurs. But this asks the flip side: Is it possible that they brought the elements that were needed to create life on Earth? Deep, detailed (and sometimes a bit dry), this starts a season that also re-examines the first mammals and civilizations. Read more…