Buying a telescope is a big step, especially if you’re not sure what all those terms — f/ratio, magnification, go-to — mean. So, to eliminate confusion and make sure you understand what you’re buying, ...

For Peggy Walker, the sky is the limit. And she's happy to prove the same for you. She and her husband are members of Broken Arrow Sidewalk Astronomers, which will host a "Telescope 101" class 3-5 p.m ...