This Week: Ancient water = ancient habitat?
In the News: Methane on the menu in the Gulf of Mexico?
Coming Thursday: Roaches: A lot smarter than you thought!
The Skogafoss is one of the biggest waterfalls in Iceland, and is especially beautiful in this stunning image under the aurora borealis. The Northern Lights are shining against a great sea of stars, including the constellation Ursa major, or Great Bear, home to the asterism — a recognizable cluster of stars — the Big Dipper. [...]