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Fifty years after Neil Armstrong took that "one small step" there's a new space race underway to return humans to the moon.
The US President Donald Trump wants American boots on the lunar surface by 2024, while China's aim is to have a scientific research station near the moon's south pole within ten years.
With the US-China rivalry extending into the cosmos, how much pressure is NASA under?
Guest: Casey Dreier, senior space policy adviser, Planetary Society
Producer: Kim Landers
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