How big are the planets and how far away are they compared to each other? See how the sizes of planets and the distances between them compare. And find out why it's so hard to create a scale model of the solar system that accurately represents both size and distance on a single screen or the page of a book.
ژانر:
برای ارسال نظر وارد حساب کاربری خود شوید ورود/عضویت