SUNSET: 
Star Clusters: Four for the Road
Using binoculars, find these four clusters that will fit comfortably in the same field of view — observe part of the structure of the galaxy made visible.
The Inconstant Star
The joys of observing variable stars are predictably wonderful. Learn about these inconstant stars which are consistently delightful.
Inside the December 2017 Issue
How We See Space: Juno at Jupiter, Machine Learning in Astronomy, Sketching the Stars, and Understanding Surface Brightness — S&T's December 2017 issue
Stellar Splendor: An Extraordinary Encounter
An extraordinary encounter with the stars: the most peacefully (yet still stirringly) wondrous is the sight of a clear, dark sky filled with stars.
The Vagaries of Crater "Tweens"
Some lunar impacts have characteristics that make them neither "simple" nor "complex." Think of them as the “young adults” of the Moon’s crater population.
The Drama-Ridden Couple of R Aquarii
R Aquarii may look like a normal pulsing red giant — but it has a lot more going on around it. Its next episode of weirdness may begin soon...
Join S&T's Live Webinar for Deep-Sky Imaging
Learn how to get the most out of your astro-imaging equipment with this informative live webinar hosted by S&T contributing editor Richard S. Wright, Jr.
Sketching the Orion Nebula
Learn how to sketch the Orion Nebula at the telescope from Sky & Telescope Contributing Editor Howard Banich's experience.
NGC 7331: Odd One Out
Can you spot September's Binocular Highlight from Mathew Wedel — spiral galaxy NGC 7331? Grab your binoculars and find a nice dark sky spot.
S&T Webinar: When’s the Next Solar Eclipse?
If you loved seeing August's solar eclipse and are eager to see another one, don't miss this live webinar on upcoming total and annular solar eclipses.
Teach Yourself Machine Learning
Curious about machine learning? Learn about the inner workings of machine-learning algorithms without writing a line of code.
Inside the November 2017 Issue
The November 2017 issue of Sky & Telescope explores our celestial neighbors both near and far. Learn about upcoming missions to Mars, and more!
M17: The Nebula With Too Many Names
Messier 17 (M17) has at least five proper names — Omega Nebula, Horseshoe Nebula, Checkmark Nebula, Swan Nebula, and the Lobster Nebula. Why so many?
S&T Webinar: Sara Seager on Exoplanets
Join renowned MIT researcher Sara Seager for a fascinating behind-the-scenes look at how we're readying the technology to find and study planets like Earth
Showpiece Doubles
Point your telescope towards these doubles — true gems of the late-summer sky. You don’t even need dark skies or a big telescope to admire them!
Asteroid 22410 Grinspoon: My Rock of Ages
David Grinspoon shares his thoughts on being immortalized far out in the asteroid belt and his namesake, asteroid 22410 Grinspoon.
Hickson Compact Groups
Contributing Editor Ted Forte offers a look at Hickson Compact Groups in the November 2017 issue of Sky & Telescope. In 1982, Canadian astronomer Paul Hickson published a list of 100 compact galaxy groups based on his examination of the Palomar Observatory Sky Survey (POSS) red plates. A compact group,…
Abell 194
Sky & Telescope Contributing Editor Ken Hewitt gives us a guided tour through Abell 194, a visually rich galaxy cluster in Cetus.
Inside the October 2017 Issue
We strive to understand the universe as the universe itself ages. What will the solar system look like in 6.5 billion years? Is there a ninth planet? What is going on in the R Aquarii system?
Diamond of Three Rings
A total solar eclipse offers the most spectacular of jewels, the diamond ring, as the Moon blocks all but a small part of the Sun's brilliance.