Comet ISON: The comet of the century or cosmic bust? - Nov 20, 2013

Air Date: Nov 20, 2013 12:00 AM ET

The twin-tailed sun grazer called ISON, now streaking overhead, may be the brightest comet this century. And as it soars towards maximum brilliance this weekend, we look for the meaning of its lambent glow.

Stay Connected with CBC News