SUNSET: 
Understanding Cosmic Sound Waves
Ancient cosmic sound waves (aka baryon acoustic oscillations) shaped the universe we see today. These animations demonstrate how the universe's large-scale structure came to be.
Sky & Telescope Errata: 2016
Check here for a list of known errata in 2016 issues of Sky & Telescope. If you don't see the error you found, send us an e-mail and alert us.
Circumpolar Galaxies
On a single night at a remote site, Contributing Editor Steve Gottlieb observed 35 circumpolar galaxies. Here we're providing a complete list of those 35 galaxies,
Highlights from the International Planetary Patrol Program
Astronomers dedicated significant time and resources to studying the planets as deep-space exploration ramped up in the late 1960s and early 1970s.
Monster Galaxies
Take advantage of early evenings and dark winter skies — turn your scope southward to view some of the most massive objects in the universe.
Beyond the Printed Page: Soviet Stamps and Astronomy
Read on for an entertaining (and true) story on the Soviets, the morals of society, and astronomy.
Beyond the Printed Page: Gravitational Waves
As part of our December 2015 issue’s articles on general relativity and gravitational waves, we’ve compiled some videos to help you grasp both.
Forming Massive Stars - Beyond the Printed Page
The cover story of the October 2015 issue features the conundrum of massive star formation: how do these stars can form at all in the hostile environment they themselves create? Here, you'll find accompanying videos.
Going Deep: Delphinus
Some additional finder aids for "Going Deep" in Delphinus.
Beyond the Printed Page: Solar Flares
What is a solar flare? Flares are spikes in emission from the Sun, energy unleashed (we’re fairly sure) when magnetic field lines suddenly reconnect. Read more about them and watch fascinating videos in this online extra to our November 2015 cover story.
NEAF 2015 Product Videos Are Here!
Watch in-depth conversations between Dennis di Cicco and astronomy vendors to find full details on hot new products and featured equipment.
VIDEO: iOptron at NEAF 2015
iOptron’s chief engineer Kevin Zou takes Sky & Telescope on a tour of the company’s extensive line of telescope mounts and camera tracking platforms.
VIDEO: Sky-Watcher USA at NEAF 2015
Sky Watcher product specialist Kevin LeGore gives an overview of the company’s latest offering of telescopes.
VIDEO: Software Bisque at NEAF 2015
Learn the history of Software Bisque, from its introduction of TheSky planetarium software in the 1980s to its evolution of state-of-the-art robotic telescope mounts.
"Behind the Scenes" with New Horizons
Thanks to NASA's New Horizons spacecraft, we're about to see Pluto up close for the first time. Here are candid snapshots of the scientists and engineers who'll make it possible.
Tidal Effects: The Planets vs. the Pebbles in Your Yard
So when astrologers talk about tides linking us to the planets, they're babbling pathetic woo.
The Herschel Sprint
Experience Herschel’s “Night of Discovery” for yourself! Follow this guide to recreating William Herschel's amazing night covering 73 deep-sky delights.
Isolated Triplets of Galaxies
S&T contributor Steve Gottlieb has made available data distilled from the Karanchentseva catalogue and his own observations to assist you in your observations of isolated triplets of galaxies.
My Night in the Stratosphere
What's it like to fly on SOFIA — a repurposed Boeing 747 with a huge rectangular hole in its side and a state-of-the-art telescope peering out through it?