There is a fact almost everybody knows and almost nobody can explain, which makes it a useful place to start.
The Moon presents the same face to Earth continuously. The…
Everything below comes from one thing: the axis the Earth spins on is not perpendicular to the plane it orbits in. Every seasonal phenomenon anywhere is a consequence of that…
There is a question that sounds unanswerable and turns out to be a geometry problem.
How far away is a star? You cannot go there. You cannot bounce anything off…
Everybody who has been somewhere completely dark reports the same surprise: the sky is bright.
Not bright like daylight, but visibly not black. There is enough light to see the…
Source: Wikipedia
Archaeology depends on context. An object in the ground is surrounded by information — what layer it sat in, what was beside it, how it was arranged, what the…
Almost nobody looks at a dark night sky and thinks it requires explanation. It is dark because the sun has set, which seems sufficient.
It is not sufficient, and noticing…