Probing Question: How are we affected by light pollution?
10/12/11
It has been one of Homo sapiens' most ancient activities: sitting around a fire and gazing with wonder at the stars spread across the dark night sky. These days, if you've had this awe-inspiring experience, you're one of the lucky ones, says Christopher Palma, senior lecturer in Penn State's astronomy & astrophysics department. "Did you know that from many locations in the United States you can't see the whole Little Dipper anymore?" he asks.