The world's best-selling astronomy magazine offers you the most exciting, visually stunning, and timely coverage of the heavens above. Each monthly issue includes expert science reporting, vivid color photography, complete sky coverage, spot-on observing tips, informative telescope reviews, and much more! All this in an easy-to-understand, user-friendly style that's perfect for astronomers at any level.
Peering inside a monster galaxy
X-rays tell an explosive tale about the inner workings of M87 — a giant elliptical galaxy in the Virgo cluster that ranks among the most massive in the local universe.
Web Extra: Meet face to face with a black holes jet
Hubble Space Telescope observations reveal how the central jet in active galaxy M87 changes with time.
Secret lives of supermassive stars
The most massive stars burn through their material incredibly fast, die in fantastic explosions, and have long-lasting effects on their neighborhoods.
Web Extra: Watch the first star evolve
Astronomers model the lives and deaths of the first generation of stars on computers to learn how these behemoths affected their surroundings.
A dream night with the Discovery Channel Telescope
Few observers are able to use an instrument with a 14-foot mirror. For one night, Tom Polakis saw how the universe looks through such a behemoth.
Web Extra: An inside look at the Discover Channel Telescope
Tom Polakis, who spent a night under the stars with this piece of big glass, shares more photos of his experience.
View Ceres and Vesta at their best
Take time this spring to track down the two brightest asteroids.
24 gems near the North Celestial Pole
Point your telescope northward any clear night, and you’ll see some of the best star clusters, nebulae, and galaxies in the sky.
Web Extra: Explore more north polar deep-sky treats
Combine these nine far-northern objects with the 24 already described in the magazine, and you’ll have all you need for a great time at the eyepiece any night of the year.
Astronomy tests a great new collimator
Align your SCT quickly, easily, and in broad daylight with HOTECH’s Advanced CT Laser Collimator.
See Saturn in prime time
Don’t wait any longer. The time to observe Saturn is now!
Sky this Month
StarDome and Path of the Planets
In Every Issue
From the Editor