Beyond the Printed Page

You’ll find here the digital extras that accompany our feature articles, including interviews with world-renowned experts, simulations of the newest astronomical theories, and extensive image galleries. Go beyond the printed page to explore the multimedia world of science discovery and community interaction.

Don’t know where to start? Here are some suggestions: After reading about the role of citizen science in astronomy in the March 2014 cover story, check out Meg Lamb’s online article about two of the newest Zooniverse programs looking for your participation: Space Warps and Planet Four. Or watch simulations of the unfolding universe that accompanied Joel Primack’s July 2012 cover story on the newest cosmology results. And don’t miss editor in chief Robert Naeye’s exclusive interview with exoplanet expert and MacArthur “Genius Grant” recipient Sara Seager (MIT).

The Herschel Sprint

Observers can experience Herschel’s “Night of Discovery,” featured in the April 2015 issue of Sky & Telescope, for themselves. Like the Messier Marathon, the Herschel Sprint can be completed in one moonless night in the spring. Purists can recreate the sweep using an eyepiece that provides a magnification of about 150x, sweeping in a...

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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.

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How to Use the WorldWide Telescope

The WorldWide Telescope (WWT), featured in the April 2015 issue of Sky & Telescope, isn't just another piece of planetarium software. Its incredible breadth and depth of data allow users to explore the universe in an interactive way. Coauthors Curtis Wong (Microsoft Research) and Alyssa Goodman (Harvard University and Harvard-Smithsonian Center for Astrophysics) teamed...

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App-Powered Astronomy

In our March 2015 issue, we ask noted amateur and professional astronomers to highlight the astronomy apps they use most. These are apps that every astronomer should have in their back pocket, ranging from practical planetarium and weather apps, such as Scope Nights and Sky Safari 4, to science guides, such as Exoplanet and...

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Flying Through Cosmic Voids

In the February 2015 issue of Sky & Telescope, author Marcus Woo walks readers through the science of cosmic voids. Here, videos demonstrate a sense of cosmic perspective, taking the reader on flights through the universe both theoretical and observed.

Default entry screen for NASA JPL HORIZONS Web-Interface.

Generating an Ephemeris

Terry N. Trees show us how to create an ephemeris, a table showing a celestial object's calculated positions for a given time period, using JPL HORIZONS data.

Mutual Events of Jupiter’s Satellites in 2014–15

A full season of mutual events for Jupiter's four largest satellites As Jupiter shines brightly down from the sky during its 2014–2015 apparition, quite often Jupiter's four big Galilean moons will occult and cast their shadows on each other. A "mutual events season" like this happens about every 6 years, when Earth and Sun...

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What’s Next for Inflation Cosmology – New Updates

Our July 2014 cover story was the apparent discovery of gravitational waves from the instant of inflation when the Big Bang took shape. Just as the article was printed, a serious challenge to the discovery appeared: the researchers had underestimated the amount of interstellar dust that could be contaminating their data. Here are more...

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An Image Gallery of the Cosmic Dawn

In the cover story of the June 2014 issue of Sky & Telescope, a team of scientists uses the Hubble Space Telescope to look back through cosmic time to the dawn of the universe, back to the time when galaxies were just beginning to form. With hundreds of hours of observing time on one...