Although he was the second human to walk on the moon, astronaut Buzz Aldrin isn’t getting out the space race yet. He’s working on plans to develop a massive shuttle that would travel between the Earth and Mars, transferring people and supplies to and from the Red Planet. The shuttle wouldn’t actually stop at Mars, it would just drop off people and then use gravity to make a return voyage back to Earth to pick up more people. And although the idea sounds way off, Aldrin, and researchers from Purdue University believe something could be developed by 2018.
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