Holiday shopping season has really kicked into gear, and if you have a stargazing fan on your gift list, you have a lot of choices. I think the best thing to do is buy online from one of the major ...

This review, “Celestron’s Advanced Series Telescopes,” appeared in the August 2004 issue of Astronomy magazine. The first go-to telescopes, introduced a decade ago, had one thing in common: they were ...

If this is the easy part of making a complete reflector telescope from a single piece of glass, we can’t wait to get a load of the hard part! A little backstory may be in order for those who don’t ...

In this paper, a Ku-band corrugated feed horn antenna for a Cassegrain reflector is designed and optimized. The horn dimension parameters are optimized so that it has a radiation pattern with a ...

I'm often asked to recommend a telescope, especially around the holidays, when gift-giving is on our minds. Today I'll share a few suggestions, but before we talk specifics, let's look at the ...