The cover of the August 2025 issue
Digital Edition

Jupiter Highlights, the Eagle Nebula, and Mirror Cleaning

In the August 2025 issue of Sky & Telescope, we’re jumping for Jupiter with a close look at the Great Red Spot as well as at the naming of the Galilean moons. If pollen and wildfire ash are hindering the view of our friendly neighborhood gas giant, check out S&T’s guide on how to safely clean optics. Once you’re ready to move on from Jupiter, we’ve got some more delights in store for you. Take your squeaky-clean optics and join us for a deep dive into M16, host to the famous “Pillars of Creation.” Then, take a detailed tour through the variety of Milky Way stars that we see every night, and find out what parts of our galaxy they belong to.

FEATURE ARTICLES:

Secrets of the Great Red Spot

Astronomers are delving into the details of what sustains Jupiter’s iconic storm

By Amy Simon

Who Named the Galilean Moons?

Hint: It’s not who you think.

By William Sheehan

Exploring M16 and the Pillars of Creation

Go deep into one of the sky’s most tantalizing Milky Way vistas.

By Ken Croswell

A Stargazer’s Guide to the Milky Way

Most of what we see in the night sky reflects the structure of our galaxy and the mix of stars it has created.

By Ken Croswell

How to Clean Your Optics

All reflective optics eventually need cleaning. Here’s how to safely do the job.

By Thomas Eversberg

Beyond the Printed Page:

Cosmic Treasure Trove

See the Euclid Observatory’s first data release.

Lunar Observing

Join the Lunar Dome Atlas GLR group Project.

Hunt Faint Fuzzies

Use José Torres’s TriAtlas C charts to find faint, distant galaxies in the Summer Triangle.

Get Involved

Help the planetary scientists monitor the Great Red Spot by submitting your images to the Planetary Virtual Observatory and Laboratory.

ALSO IN THIS ISSUE:

Tales from the Garden of the Hesperides

The tales of Draco have varied outcomes, leaving you to decide this celestial serpent’s fate.

By Stephen James O’Meara

Perseids Versus the Moon

The year’s best meteor shower toughs it out against a luminous rival.

By Bob King

Domes and Swells

Hunt for these elusive lunar features

By Charles A. Wood

Urban Astrophotography

Try these tips and techniques for imaging under city lights

By Tony Puerzer

Table of Contents

See what else August’s issue has to offer.

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