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Transit of Mercury 2019 (composite)

Celestial News & Events

Capturing the Transit of Mercury

Though clouds blocked the sky for many yesterday, those with a clear view had the chance to see tiny Mercury cross the face of the Sun.

Pandora

Planets

A Guide to All of the Moons of the Solar System

Not so long ago, astronomers thought only a few dozen moons orbited the planets of our solar system. Today, the total count tops 170!

Pro-Am Collaboration

From Lunar Flashes to Variable Stars: Pro-Am Astronomy Projects

Track satellites, spot flashes on the Moon, monitor violent stars — learn how amateur astronomers can become involved in professional science.

Infographic: (Back) to the Moon

Spacecraft and Space Missions

Infographic: (Back) To the Moon

Takes a look at what we can expect to see in the next five years of Moon exploration with Sky & Telescope's infographic from the July 2019 issue.

Diamond Ring by Aristeidis Voulgaris

Celestial News & Events

From the Frontline of Totality: Sky & Telescope Reports

Thousands of spectators, professional astronomers, and several Sky & Telescope editors traveled to see totality from the ground — and sky.

Total Eclipse 2017

Celestial News & Events

Where to Watch the July 2, 2019 Total Solar Eclipse Online

Whether cloudy skies or airfare prevent you from seeing the total solar eclipse on July 2nd, you can still see totality via one of the multiple webcasts we compile here.

Astronomy Questions & Answers

Four Things to Know About the Next Solar Eclipse

Prepare for the 2020 solar eclipse with these basic facts and other resources.

About Sky & Telescope

Sky & Telescope Index: November 1941 to September 2021

A unified table of contents indexes all the articles in Sky & Telescope, now available online.

Press Releases

American Astronomical Society to Acquire Sky & Telescope

The American Astronomical Society (AAS) is acquiring Sky & Telescope magazine and its related business assets.

Radiant of the Lyrid meteor shower

Celestial News & Events

April's Lyrid Meteor Shower

The Moon gets in the way of April's Lyrid meteor shower, but it's still worth scanning the sky for the chance of fireballs.

Sky & Telescope at NEAF

People, Places, and Events

News from NEAF: The 2019 Northeast Astronomy Forum

Sky & Telescope editors reconnected with readers at NEAF, where astro-enthusiasts were treated to astro talks, activities, and equipment galore.

Astronomical Tools

Interactive Sky Chart

Find out what's in your sky tonight — create a custom map of the night sky for your location!

Press Releases

All You Need to Know for Sunday's Total Lunar Eclipse

The total lunar eclipse of January 2019 promises to be a spectacle for those under clear skies in the zones of totality.

New Product Showcase

MallinCam's Live View Camera

MallinCam unveils its newest addition to the SkyRaider Video Camera series, the SkyRaider DS10c ($929.99).

New Product Showcase

Celestron's 8-Inch Astrograph

Celestron announces the newest addition to its line of ultra-fast astrographs. The 8-inch Rowe-Ackermann Schmidt Astrograph ($1,699) is an f/2 optic designed exclusively for deep-sky imaging.

meteor shower

Get Ready to Greet the Geminid Meteors

Don’t miss one of the best meteor showers of the year. Catch the Geminid meteors as they peak on December 13th and 14th.

New Product Showcase

Adam Block Studios' Processing Lessons

Adam Block Studios now offers streaming video tutorials that teach astrophotographers how to use the popular image-processing software PixInsight via comprehensive and in-depth lessons. PixInsight Fundamentals ($180) is an in-depth primer of the core functionality of the powerful software package, while PixInsight Horizons ($250) discusses many advanced techniques to help you get the most out of your image data.

Science-based Q&A

The Kavli Foundation Q&A: The Extraterrestrial Next Door

Researchers discuss new signs of chemistry favorable to life at Mars, Europa, and Enceladus — plus how to probe for its presence with interplanetary missions.

New Product Showcase

Hubble Optics' UL24 Dobsonian

Hubble Optics, known for manufacturing high-quality Newtonian reflector optics, now offers the UL24, a 24-inch f/3.3 ultra-light Dobsonian ($9,500), a Newtonian reflector built for travel.

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