The End of Astronauts?
Planetary Radio: Space Exploration, Astronomy and Science
00:00
Are We Going to Mars?
iReporter: It's hard to send people to mars and back, compared to sending a robot. iReporter: Even with the moon, it's not at all clear why we need to send astronauths to the moon... Wouldn't it be wise to do what we do so well without risking human life? We are looking 20 or 30 years ahead - there will be people in low earth orbit.
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