Learn about a property of light that allows telescopes to work. Try building your own and “mess around”. Try making larger holes, adding more, or taking away the foil.
Pinhole viewers are a model of your eye and a telescope which demonstrates how a small aperture forces the light from an object to project into a crisp image on the screen. Lenses in telescopes and your eye help focus light that passes through them but are much bigger, allowing us to see objects that are fainter and farther away. large telescopes on Earth have apertures of 10 meters and more.