Over the past week, scientists have published the results of studies analyzing two very strange -- and very different -- lakes. One is Pitch Lake, a lake made of asphalt and filled with hydrocarbon gases on the Caribbean island of Trinidad. The other is Lake Whillans, a freshwater body located 800 meters under the surface of a glacier in West Antarctica. You might say the lakes seem unearthly, although they're located right on our home planet. Titan, Saturn's moon, has hydrocarbon lakes like Pitch Lake, and several moons in our solar system are thought to host liquid water underneath a thick layer of ice.