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Two years would be plenty of time for a run around Mars or Venus, if it had enough propellant.
by maxander 9y ago
Two years would be plenty of time for a run around Mars or Venus, if it had enough propellant.
- ceejayoz 9y agoIt's regularly observed by amateur astronomers. http://www.skyandtelescope.com/astronomy-news/observing-news/how-to-spot-the-usafs-mini-shuttle-x-37b-2010201522/ http://www.skyandtelescope.com/astronomy-news/observing-news...