How far is the Moon anyways?

This is a great video: How far is the Moon from the Earth? People have no idea - why? We constantly see diagrams and figures depicting the Earth and the Moon close together (perhaps with a spacing of 1 Earth radius or diameter). But these diagrams are not to scale because they have to show enough detail while still fitting onto the page of a book or onto a computer/smartphone/tablet screen.

Video: How Far Away is the Moon?

Also excellent: How Big is the Solar System? and The Solar System - Our Home in Space!

After watching that...have a look at how graduates from Harvard University explain to you what causes the seasons. We all have the incorrect impression that our orbit around the Sun is highly elliptical and thus it intuitively makes sense to think of the Earth closer to the Sun in the summer - wrong!

Harvard Graduates Explain Seasons