Liquid hydrocarbon lake detected on Titan. The lake, likely composed of methane and/or ethane, was found by the Cassini probe. Scientists think that Titan, largest moon of Saturn, has an environment and climate somewhat similar to that of Earth, albeit not water-based.

Only 10 more space shuttle missions left. While the shuttles are marvels of technology, they are getting old fast. Remember that they were introduced in the late '70s. Personally, I can't wait to see the next generation of space vehicles. Unfortunately, I don't think we are quite at this point, yet.