Gauge the Darkness and Color of the March 2026 Total Lunar Eclipse
Here’s all you need to know to help measure the size of Earth’s shadow during the next lunar eclipse.
Akira Fujii (1941-2022), Photographer Par Excellence
Acclaimed astrophotographer Akira Fujii's wide-field views of the constellations, each with impeccable star images, have been a hallmark of Sky & Telescope magazine for nearly four decades.
Here’s What’s New in the Pocket Sky Atlas, 2nd Edition
Sky & Telescope presents the second edition of its most popular celestial atlases, the Pocket Sky Atlas and the Jumbo Pocket Sky Atlas!
How We Create the "Skygazer's Almanac"
Sky & Telescope's year-at-a-glance guide to celestial happenings is a symphony of detailed calculations and clear, elegant design.
Find the Phase of the Moon
Learn the phase of the Moon tonight, the day you were born, or on any historical date.
The Jumbo-Size Pocket Sky Atlas
Read on to find out what's new in the Jumbo edition of our popular Pocket Sky Atlas.
Bill Bradfield, Comet Hunter Extraordinaire (1927-2014)
The prolific comet hunter William A. Bradfield tallied 18 comets in his lifetime, each discovered visually and credited to him alone.
Nova in Sagittarius: Nova Sagittarii 2012 No. 4
A nova visible in good binoculars was spotted July 7, 2012, by observers in Japan.
A Glitch in Time
On June 30, 2012, the world's official timekeepers will add a leap second for the first time in 3½ years.
Norman Edmund, Optics Entrepreneur
His company got its start with the military surplus optics that flooded the marketplace right after World War II. Ever since, Edmund Scientific (now Edmund Optics) has inspired generations of budding astronomers.
New Binocular Comet in the Morning Sky
On November 3, 2010, two amateurs in Japan discovered an 8th-magnitude comet visually. It's visible in binoculars.
Walt Whitman's "Meteor-Procession"
A team led by Texas State astronomer Donald W. Olson identifies a meteoric event described by Walt Whitman in Leaves of Grass with a real event the poet probably witnessed from New York City on July 20, 1860.
Asteroid To Hide Naked-Eye Star
For anyone in a 25-mile-wide path right across Los Angeles, a bright star in Ophiuchus will wink off for several seconds in the predawn hours of April 6, 2010.
New Comet Machholz
California's comet-hunting veteran Don Machholz bagged his 11th discovery on March 23 and 26, 2010. It's a faint diffuse comet, low in the morning sky.
Nova in Eridanus
Japanese amateur Koichi Itagaki, of recent comet fame, has just discovered a nova near Rigel on November 25, 2009.
Five Amateurs Win Comet Prize
The 2009 Edgar Wilson Award honors amateur astronomers who discovered five different comets in the last 12 months, proving that backyard comet hunting still thrives in this age of automated professional sky patrols.
New Circumpolar Comet Yi-SWAN
On March 26, 2009, Korean amateur Dae-am Yi caught the small, greenish glow of a new comet with his Canon camera.
Rare Eclipse of EE Cephei Is Set to Begin
During January 2009 a faint star in Cepheus will fade, as it does every five or six years, when "something" goes in front of it.
Rock from Space to Burn Up over Africa
Late Monday night, October 6-7, 2008, a tiny asteroid will enter Earth's atmosphere over Sudan, creating a spectacular explosion in the night sky.
New Date for Caesar's British Invasion
In 55 BC, when Julius Caesar and his fleet approached the white cliffs of Dover on the British coast, he faced unexpectedly strong tides. Researchers from Texas State University have used tidal measurements and other astronomical clues to revise the exact date of the historic landing.
