We are in for a bit of treat this year. Maybe. Perhaps. Possibly.
There are two comets, one nowish, one latter this year.
Check out the light and fluffy article to get started;
http://mashable.com/2013/01/25/comets-headed-towards-earth/
They are always a bit hit and miss to predict their brightness, so lets not get our hopes up too much, but, if it goes off like they hope, it could be quite a show…..