NASA 금성 탐사 개념 (High Altitude Venus Operational Concept)
NASA Langley researchers want to get a better idea about conditions on our nearest planetary neighbor, Venus, so they have come up with HAVOC or a High Altitude Venus Operational Concept – a lighter-than-air rocket ship that would help send two astronauts on a 30-day mission to explore the pla…
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14-10-12 23:35