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ACM Opinion

Human Spaceflight: Find Asteroids to Get to Mars


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Near-Earth asteroid

At least one roughly 10-metre-wide asteroid passes as close as the Moon each week (artist's impression).

Credit: Detlev van Ravenswaay/SPL

Interplanetary flight is the next giant leap for humans in space. Yet consensus on even the smallest steps forward has proven elusive.

From Nature
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