Buzz Aldrin: NASA on Wrong Track With Moon-Mission Reruns

Apollo 11 astronaut Buzz Aldrin has a problem with NASA's current manned space plan: Namely, the five-year gap between the shuttle's scheduled retirement next year and the debut of the Ares I rocket and the Orion spacecraft, which will take us no further than the moon — a place we've already been.

Aldrin thinks NASA can do better. His plan: Scrap Ares I, stretch out the remaining six shuttle flights and fast-track the Orion to fly on a Delta IV or Atlas V. Then set our sites on colonizing Mars.

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