Communications of the ACM
ACM Opinion
Human Spaceflight: Find Asteroids to Get to Mars
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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