Stars are giant spheres of superhot gas made up mostly of hydrogen and helium. Constellations are a group of stars that appear to make a pattern in the sky. Follow the instructions below and make your ...

The eclipse is days away, and if you are scrambling to find eclipse-safe eyewear, we have a back-up plan. A pinhole projector can easily be made at home with items you have on hand. The projector ...

It’s fantastic that we’re living in the age of downloadable PDF patterns, it really is. But printing out a bunch of sheets of paper and taping them together is a ...