PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | PURCHASE BACK ISSUES | SUBSCRIBE What is Tabby's Star? Who Discovered the Ring Nebula? Can Life Survive in TRAPPIST-1? Mysteries abound in astronomy, and not all the questions have answers — yet. Tabby's Star is emblematic of the search for truth. This seemingly ordinary star occasionally undergoes…
Study the anatomy of a comet, find colliding galaxies in your night sky, and learn how to cook up a universe — the May issue of Sky & Telescope is here!
Join Sky & Telescope Contributing Photographer Babak Tafreshi for a live webinar to learn the secrets of stunning Milky Way photography.
Follow Curiosity's journey to explore the Red Planet's more habitable past, probe the depths of the Milky Way's dark matter halo, and explore Herschel's ghosts from your backyard - all in the April issue.
Don't miss the chance to see world-class observatories by day and the amazing southern sky by night during next month's astronomy and stargazing tour in Chile.
Why would an amateur astronomer build a standing-stone calendar, thousands of years after the last ones were erected by his distant ancestors in the British Isles?
Some of Sky & Telescope's older DVD and CD back issue compilations have an issue due to Adobe Flash. Here's how to work around the problem.
No matter what your level of interest in planetary exploration, you won't want to miss S&T's live webinar on Saturday, January 28th. Hear Alan Stern's personal take on how NASA's New Horizons spacecraft got to Pluto and what we learned once it got there.
Stellar streams are the remains of dwarf galaxies that once orbited the Milky Way. We showcase here stunning images of these galactic ghosts.
Explore the Milky Way, from its ultra-faint companion dwarf galaxies to its plethora of super-Earths, plus find binocular and deep-sky targets for tonight in the March 2017 issue.
In our March 2017 issue we included a diagram of all small, confirmed exoplanets in their stars’ habitable zones. Here’s the saga of how we decided which planets to put on that list.
Peruse a gallery of ultra-faint galaxies, the subject of Keith Bechtol's feature article in the April 2017 issue of Sky & Telescope. Wide-field surveys are accelerating discoveries of these elusive companions to the Milky Way.
Explore an astronomy revolution fomented 30 years ago by Supernova 1987A and learn how supermassive black holes bind to their galaxies in this issue of Sky & Telescope.
The International Astronomical Union has named an asteroid for Fred Schaaf, longtime Sky & Telescope contributing editor.
Join a live webinar with renowned astrophotographer Babak Tafreshi to learn some advanced techniques that can improve your landscape astrophotography.
Interested in capturing stunning images of the Moon and planets? Join S&T's live astrophotography webinar on Monday, November 21st, and learn what it takes.
If you see something questionable in a recent issue of Sky & Telescope magazine, check here to see a list of clarifications and errors that have been found.
Observing Editor JR Johnson-Roehr recently joined a group of astro-tourists in Iceland for the 2016 Sky & Telescope northern lights tour
Looking for a new deep-sky challenge? Turn your scope toward ACO 426, the Perseus Galaxy Cluster.
Mark your calendar for Wednesday, November 9th, when you'll get great background info and travel tips for America's coast-to-coast total solar eclipse. Maybe you've always been curious about why everyone gets excited about total solar eclipses. Maybe you're thinking about traveling to see the one next August 21st, but you're not sure where to go.…
Explore the solar system: see Ceres through Dawn's eyes, and Pluto's moons through the eyes of New Horizon. Then take a tour of cosmic time and space with these popular celestial sights.
Sky & Telescope has put together a digest of active missions in 2017. We’ve included astrophysics, planetary, gravity, solar, space weather, and stellar projects.
The November 2016 Sky & Telescope recaps the 75 most exciting years for astronomy in human history -- since its issue number 1 in 1941.
Wondering where to go to witness next year's total solar eclipse? Sky & Telescope is proud to offer a newly developed tour based in eastern Wyoming.
Sky & Telescope celebrates 75 years with a special anniversary issue! Find out how it all began and catch the highlights of astronomy over the decades.