Stephen Hawking: The Costs Of Space Exploration Are Steep, But They Are Well Worth It John Glenn, the first U.S. astronaut, questioned a major portion of President Bush's vision for space exploration, the plan to return to the moon and build a base there, then to go on to Mars. Glenn, who later was a senator from Ohio, said this piecemeal approach would involve huge extra costs, compared to launching a rocket that would carry a crew directly to Mars.…
Glenn: Why Go Back To Moon To Construct A Waystation? Why Not Go Directly To Mars?
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