Thanks to Emma for this one!
I like this article because the concept of using a giant piece of ice as a telescope was really pretty cool (no pun intended ;D). The article is about a neutrino detector called IceCube which is made up of a bunch of detectors underneath the ice of the south pole. It uses the earth as a giant filter to detect the direction that neutrinos are coming from so that researchers can trace back to where they were emitted. The hope is that by finding "hot spots" of where neutrinos are coming from will also help find sources of cosmic rays.