The prevailing view of the universe has just passed a rigorous new test, but the mysteries of dark matter and dark energy remain frustratingly unsolved.
Sky-Watcher unveiled its Stargate Truss-Tube Dobsonian Telescopes at NEAF. These large 18- and 20-inch f/4 reflectors start at $5,999.
From oxygen-thin mountaintops to barren deserts to the South Pole, many of the world’s most powerful telescopes are in distant, inhospitable environments. Three researchers share their adventures pursuing science at the farthest corners of the world.
This week the big near-Earth asteroid 3122 Florence is passing relatively close by, and skywatchers with even modest telescopes have a chance to spot it.
With a subscription to Sky & Telescope you'll always know what's coming next of astronomical note — and a whole lot more!
In astrophotographer Warren Keller's new book, Inside PixInsight (softcover $34.99, ebook $24.99), he details how to use PixInsight to produce astrophotos from the reader's own data.
A few weeks ago we took to Twitter and Facebook to find out what questions you wanted answered about the August 21st Total Solar Eclipse. Now we're back with Part II of the answers!