spaceexp: The speed of light between Earth and Moon in real time via reddit

spaceexp:

The speed of light between Earth and Moon in real time

viareddit

#writing reference    #writing resource    #writing space    #science fiction    

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Source Link  via  Specs has Resources (TW)

tumblr @ the-darkish-side-of-specs

Wed, 23 Jan 2019 19:21:59