Comments on:

Talking Points: Stealthy meteor, sequestration's impact on Metro, cardinal admission

Back to the article » |
Where did that Russian meteor come from? New data from NASA shows that the meteor that exploded over Chelyabinsk, Russia, on Feb. 15 has been crossing the Earth's orbit for thousands of years. But scientists couldn't see it coming with ground-based telescopes, mostly because it was hidden in the sun's glare. NASA also said the blast was the equivalent of 500 kilotons of TNT -- roughly 30...