Top network posts

• 101 What is the closest distance a human being has come to Mars ever since the beginning of the space age?
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• 81 Building a bridge to the stars
• 81 Are there any “Third Order” acronyms used in space exploration?
• 71 Could we wait for Mars to come to us?
• 58 What scientifically would make it possible that certain large bodies of water be impassable?
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