President Donald Trump had two messages in his speech at Mount Rushmore on the eve of July 4. The first, expected message was ...
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SpaceX Falcon lands on legs, China's on a net — how will Isro's reusable rocket come home?
From helicopter drop-tests to a still-unscheduled orbital trial, what Isro's RLV programme has achieved, and how it differs from SpaceX and China.
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