In case you haven't heard, Comet Pan-STARRS is passing by this month (March 2013). If conditions are optimal it might be possible to see the comet on certain evenings without a telescope. One of the first evenings is tonight, March 7, 2013.
NASA has details in this video:
For more information, try:
Everything you need to know: Comet PANSTARRS in March 2013 at EarthSky
Bright Comet Pan-STARRS in Night Sky: How to See It at Space.com
Let us know if you get to see it.