Comet Ison -- which some are calling the "Comet of the Century" -- increased in magnitude this week making it visible with your unaided eyes.

Researchers think there are many reasons for this "outburst". Perhaps the comet has fragmented, or the nucleus may have fractured causing an outpouring of volatile materials. If either of those are the case, the comet may brighten and then fade again.

In the pre-dawn hours, face east to see Comet Ison. Binoculars may help, but you should be able to see the comet with your naked eyes. Stay warm and have fun!

(Via Earthsky.org)