How big is space

    A good popular science website. It shows the distance from the earth to the deep space of the universe in the form of web page scrolling. You can see all kinds of spacecraft and planets by scrolling the mouse!

    Site URL http://www.secaibi.com/howbigisspace/

    Method

    The Chinese version is very convenient, the original BBC English version http://www.bbc.com/future/bespoke/20140304-how-big-is-space-interactive/

    Netizen mengkun provides interesting sites

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