Direction of Space Program

Although the end of the Space Shuttle program marks a lull in the United States' manned space exploration, this year will be a busy period in unmanned exploration: the Dawn spacecraft mission to Vesta - a protoplanet in the main asteroid belt, the Juno mission to Jupiter, twin spacecraft to fly coordinated orbits around the moon, and the new Mars Rover. I believe that unmanned flights are a more reasonable way to approach space exploration.