For those who weren't able to view Comet Lulin, here are some images:
Image: NASA/Bill Ingalls
This image of comet Lulin (center-right) is seen through the trees from Shenandoah National Park in Virginia, Monday, Feb. 23, 2009. Lulin, also known as the green comet, made its closest approach to the Earth overnight.
Image: Joseph Brimacombe