NOVA scienceNOW Plasma Rockets
A new rocket might be able to zip us to Mars and back in under three months. Details
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Profile: Franklin Chang-Diaz
The first Latino-American astronaut is also a scientist designing a new generation of plas...
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Rocket Scientist
How did Franklin Chang-Díaz turn a boyhood dream into an improbable career? He explains hi...
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A Mission To Mars
Former astronaut Buzz Aldrin says that a human presence on Mars is inevitable.
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A One-Way Trip to Mars?
Initial shock aside, some space scientists argue this is the only way to go.
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