* They both use lenses and/or mirrors to gather and focus light. This is the fundamental principle of how both types of telescopes work.
* They both magnify distant objects. This is the primary function of a telescope.
* They both allow us to observe objects in space. Both types of telescopes are used for astronomical observation.
However, they differ in how they gather and focus light:
* Refracting telescopes use lenses to bend light. They have a convex objective lens at the front that focuses the light onto a smaller eyepiece lens.
* Reflecting telescopes use mirrors to reflect light. They have a concave primary mirror that gathers light and reflects it to a secondary mirror, which then directs the light to the eyepiece.
