The End of Astronauts?
Planetary Radio: Space Exploration, Astronomy and Science
00:00
The Last Human on the Moon
CNN's John Defterios talks to Martin Scorsese about the prospect of humans on mars. He says it would be a great milestone in human history, but that we should only do it once. But he adds: "We can still continue the search rabotically for life under the s ofa europa or inceladus"
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