Search Help

We offer a robust search utility to help you find what you're looking for at The more you know about how the searches work, the more likely you'll get the results you want.

Where to Start Your Search

Start with the search box near the top of every page on the site. When you enter text in this box and click GO, you'll be searching the entire site.

How to Narrow Your Search

If you enter a single word in the search box, you're likely to get many more results than you want — especially if the word is a common one. For example, if you enter Moon, you'll find every article that includes even a passing mention of not only Earth's natural satellite, but also any other moon in the solar system. Single-word searches are likely to produce useful results only for unusual words.

This problem can be exacerbated if you enter multiple words in the search box. For example, if you enter Saturn's moon Titan and click GO, you'll receive every article that mentions Saturn or Titan, plus all those pesky moon articles.

There are two ways to narrow your search with multiple words. First, if the words go together as a phrase, put them in quotation marks. For example, if you enter "Saturn's moon Titan" and click GO, you'll find only those articles that include that exact three-word phrase. But some articles about Titan may not; perhaps they include other phrases such as "Saturn's giant moon Titan" or "Titan, Saturn's moon".

The way around this is to join multiple words by and, or, or and not. So, for example, if you enter Saturn and moon and Titan, you'll find every article that includes all three words anywhere in the title, text, or captions.

To exclude certain results, join your search terms by and not. For example, if you search for rings and not Saturn, you'll find articles that mention all sorts of rings except the ones around Saturn.

Multiple words that aren't in quotation marks and aren't joined by and, or, or and not are treated as if they are joined by or.

How to Really Narrow Your Search

Shop at Sky:

If you're looking for an astronomy book or product in our online store, you'll want to search at Shop at Sky Search, which allows you to limit your searches by product category, price range, and/or level of expertise.

#*Magazine Archive:

Our Sky & Telescope Magazine Archive also features an Advanced Search; it allows you to limit your magazine-index searches by title and/or author and/or department(s) and/or issue date. For further information, see our Magazine Archive and Index Help page.

Other Searches on

Events Calendar:

Find an upcoming star party or other astronomy-related event by searching our Events Calendar by country and/or state/province (U.S.A./Canada) and/or date. There's also a Word or Phrase search box that behaves exactly like the site-wide search box described above.

Clubs & Organizations:

Find an astronomy club, public observatory, planetarium, science museum, or other astronomy-related institution. You can search our Clubs & Organizations directory by type of institution and/or country and/or state/province (U.S.A./Canada) and/or city. There's also a Word or Phrase search box that behaves exactly like the site-wide search box described above.

If this Help page doesn't answer your questions, please send an e-mail message to Describe your problem in as much detail as possible, and note which part of the site you were on when you got stuck. Thank you!