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 a user-friendly style that's perfect for astronomers at any level.
Copernicus and his revolution
RED WINGS • The Spitzer Space Telescope catches a star-studded butterfly.
FIRST-EVER BLACK HOLE IMAGE • After two decades theorizing about imaging a black hole directly, a worldwide collaboration has finally delivered.
NASA releases final Twins Study results • Although spaceflight triggers numerous changes in the human body, most of them are only temporary.
HOW TO MAKE THOLINS
Hubble spies self-destructing asteroid
The mystery of Mars’ methane • Conflicting reports of the gas on the Red Planet leave scientists scratching their heads.
A COLORFUL CLUSTER
NASA TESTS EUROPA CLIPPER’S ANTENNA
Israeli lander crashes into the Moon
Speedy meteors, sluggish thoughts • “How fast?” is a relative question.
A citadel of wonder • Explore a weird section of lunar terrain.
Ultima Thule Revealed • NASA’s New Horizons spacecraft revealed this distant Kuiper Belt object to be a contact binary with many odd twists.
A visit to CHILESCOPE OBSERVATORY • A trip south of the equator meant lots of work, but also some once-in-a-lifetime observations.
August 2019 Mercury’s morning glory • DESCRIBING THE SOLAR SYSTEM’S CHANGING LANDSCAPE AS IT APPEARS IN EARTH’S SKY.
RISING MOON • The Sun lights up Luna’s low-lying hills
METEOR WATCH • Summer’s most prolific show takes a hit
STAR DOME PATHS OF THE PLANETS
PATHS OF THE PLANTS
COMET SEARCH • Roaming the northern Milky Way
LOCATING ASTEROIDS • A rocky world crosses the celestial sea
How COPERNICUS moved the Sun • This astronomer’s ideas forced humanity to consider our planet a ball of rock circling the fiery Sun, and not at the center of the universe.
500 YEARS LATER
Tackle a GLOBULAR CLUSTER SHOWDOWN • Which of these marvelous stellar groups looks best through your telescope?
WHAT ABOUT CYGNUS?
A CHILE afternoon in the MOON’S SHADOW • Observers along a narrow track that crosses South America will witness darkness at midday July 2.
Become a binocular Olympian • The Stellafane meeting hosts a great secret.
Let’s dissect the Scorpion • Look for a supergiant, a variable star, and much more in this stellar showpiece.
How black holes spin • Astronomy’s experts from around the globe answer your cosmic questions.