Earth is passing through a stream of debris from "rock comet" 3200 Phaethon, source of the annual Geminid meteor shower. Forecasters expect as many as 120 meteors per hour when the shower peaks on Dec. 13-14.
FULL STORY: http://science.nasa.gov/science-news/science-at-nasa/2014/12dec_embers/
SCIENCECAST VIDEO: https://www.youtube.com/watch?v=sT3D6t8VT-k&feature=youtu.be
