41–60 of 203 results

Beyond the Printed Page

Sky & Telescope Errata: 2017

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.

NGC 1275

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Going Deep: Perseus Galaxy Cluster

Looking for a new deep-sky challenge? Turn your scope toward ACO 426, the Perseus Galaxy Cluster.

Akatsuki spacecraft

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Active Space Missions in 2017

Sky & Telescope has put together a digest of active missions in 2017. We’ve included astrophysics, planetary, gravity, solar, space weather, and stellar projects.

Eta Carinae

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A 3D View of Eta Carinae

New research on Eta Carinae featured in S&T's October 2016 issue lets you peer in and around Eta Carinae's Homunculus Nebula.

Reference fields for relativity test

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My Do-It-Yourself Relativity Test

Here's an update on an amateur astronomer's amazing effort to prove that Einstein really was right during next year's total solar eclipse.

Mink 1-65 Planetary Nebula

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Minkowski Planetary Nebulae

Looking for an observing challenge? An expert observer offers advice for exploring the Minkowski catalog of planetary nebulae.

Hercules Galaxy Cluster.

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Hercules Galaxy Cluster: Going Deep

To aid your observing endeavor, Contributing Editor Steve Gottlieb has provided an expanded table of galaxies, with their position angles, visual magnitudes, size, and positions.

Title page of C. E. Barns's 1001 Celestial Wonders, 1931 edition.

Beyond the Printed Page 1001 Celestial Wonders", "bookmark_label" : "Clicked on More from C. E. Barns's 1001 Celestial Wonders"}'>

More from C. E. Barns's 1001 Celestial Wonders

Here is Jim Mullaney's much longer sample of objects from this delightful 1927 amateur-astronomy guide, in order of right ascension, followed by more illustrations of the book.

globular cluster IMF01 at 12 Gyr

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Beyond the Printed Page: Globular Cluster Simulations

Watch a million stars age in these prize-winning simulations of globular clusters. The simulations track the stars' movements and evolution over 12 billion years.

Trifid Nebula sketch

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The Trifid Nebula

Here's some further reading on the stages of star formation visible in the Trifid Nebula, subject of the May 2016 issue's Going Deep column.

M81 — cool, too.

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Two Cool Galaxies: M81 and M82

How many details can you see when you take a look at galaxies M81 and M82?

Uranus before and after AO

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Adaptive Optics: Before and After

To expand on the feature article on adaptive optics in our May 2016 issue, we're including here a full gallery of before-and-after images. The effect of the technology is immediately visible - and astounding.

Many sound waves

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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.

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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.

NGC 3172 by David Ratledge

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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,

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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.

Elliptical Galaxy IC 2006

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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.

The offending stamp

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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.

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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.

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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.