IF summer holiday boredom is setting in, the answer could be written in the stars. Astronomy is growing in popularity across ...

He thinks it’s as straightforward as astronomy. Here’s the thing: The moon’s path around the Earth is very predictable. The only real forces involved are gravity and momentum.

Simple SSV Let’s look at the Simple SSV first. The lens comes from a pair of +1 reading glasses. You can buy these from a dollar store for, well, a dollar (or $1.50 in some cases these days).

Astronomers have found that Wyoming’s Bighorn Medicine Wheel is an astronomy observatory constructed by Plains Indians hundreds of years ago. In one sense this observatory is very simple: It was ...