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    Kosmische Vergleiche von Jay Simons

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    4 Kommentare

    1. 84thPrblm on

      American here – I’m going solar in a week or two. Can I have a smaller coal equivalent please?

    2. Arkayb33 on

      I find it hard to believe that the Kuiper Belt consist of less mass than Earth.

    4. gergek on

      Is this for sale as a bound book anywhere? I would buy a book like this for my niece and nephew in a heartbeat.

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