"Space is hard," goes the old saw among space investors. But here's a new truism you might want to memorize: Space is hard -- and it can also be weird.

Investors got their latest lesson in just how strange space investing can get late last month, when NASA revealed that it's planning a new mission to send a volunteer space mission into orbit to adjust the orbit of the Hubble Space Telescope -- and potentially extend the telescope's lifespan by another 15 to 20 years.  

Image source: Getty Images.

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Source Fool.com