If you are a magazine reader, you probably subscribe to more than one magazine.
Amateur Astronomy is a fun quarterly with articles about stargazing, star parties, and lots of observing-related stuff.
Astronomy and Sky & Telescope are both aimed at the amateur without a lot of science and physics background.
I think Astronomy Now is a little shallower than either Astronomy or S&T.
And Sky News is a little too beginner-oriented.
Astronomy Technology Today will keep you up to date on the hardware of our hobby.
Scientific American usually has at least one good astronomy-related article each month.
Discover has astronomy-related news stories.
Nature occasionally has an astronomy article.
What we lack is an astronomy magazine for the people with science backgrounds that feel comfortable looking at a Hertzsprung-Russell diagram, and know what a 'horizontal branch' is.
I think ALL the popular astronomy magazines are aimed at beginners, or at least people who have been in the hobby only a few years.
Where is the astronomy magazine for the person with a good working knowledge of astrophysics?
So I used to read Astrophysical Journal, but so many of the long articles are a study of one star cluster or one nebula. And while they can be quite informative, the sheer number of them is mind-boggling, and the magazine is quite expensive.
Then I discovered http://arxiv.org/archive/astro-ph
and I was finally able to read whatever I wanted or was interested in. You can keep up with the latest findings (I often read the studies before Space.com reports them).
I find myself wondering, though, what the optimum astronomy magazine would be, and here is what I'd like to see:
--Three to five hardcore astrophysics articles per issue.
--Three to five articles about observing targets beyond the basic 500 beginner objects.
--A few pages devoted to astronomy news
--an article or two on some aspect of astrophotography
--An ATM column/article
--a 'What's in the sky this month' article
--Three to Five equipment reviews, in depth
--An article about star parties, astronomy conventions, upcoming observational events
The above magazine would be expensive, and probably twice or more the thickness of the current S&T, and probably cost $100/year. And I'd trip over myself to subscribe asap. i don't expect I'll ever see it.
But, if it existed, it would have to be an on-line magazine. Print mags are just becoming too expensive to print and mail, alas. We see it every year as magazines disappear or get thinner and thinner. Sigh.