In the Northern Hemisphere the Comet Pan-STARRS can be seen just after sunset; just look towards the West. Best time to see it is on 10-13 March, but can be seen starting tonight. If you miss this one, not to worry, there’ll be another later this year – Comet C2012/S1. There will also be another comet in October 2014 – Comet C2013/A1 will be seen passing Mars.
For more information on these comets check out sky and telescope magazines website:
http://www.skyandtelescope.com/observing/home/185665152.html