SUNSET: 
Countdown Begins for the Great North American Solar Eclipse!
On Monday, April 8, 2024, the Moon will pass directly between Earth and the Sun, creating a total solar eclipse like the one that crossed the United States on August 21, 2017. At T minus 1 year, the countdown has begun!
The Northeast Astronomy Forum Is Back in 2023
The Northeast Astronomy Forum in Suffern, NY, welcomes visitors from across the world on April 15–16, and we'll be there — will you?
New Observations Reveal Galaxies Near and Far
Astronomers at this month's big winter conference explored intriguing small galaxies at various points in cosmic history.
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!
Observing Report: Moon Occults Mars
Sky & Telescope editors report their observations of last night's celestial event: Mars grazing or disappearing behind the Moon.
See Bright Mars Wink Out Behind the Moon
The night of December 7–8 will be an exciting one for fans of the Red Planet. Not only will Mars be at opposition, but the full Moon will blot it out of the sky for many locations on Earth.
Get Ready for Tuesday's Total Lunar Eclipse
The total lunar eclipse of November 8th favors western North America, but the whole continent will enjoy much of the spectacle, provided skies are clear.
Two Solar Eclipses Are Coming to America
Exactly one year from today, the first of two major solar eclipses just six months apart will occur over the Americas.
Planet Parade to Grace the Dawn Sky this Month
All five naked-eye planets will line up in the dawn sky in June. Not only that, they’ll also be in their proper order from the Sun.
Total Solar Eclipse: April 8, 2024
On April 8, 2024, North America will be in for a real treat: a total solar eclipse. That’s when the Moon will blot out our nearest star for lucky viewers along a narrow strip of land that stretches from central Mexico, across Texas, up through New England, and into the…
S&T Authors Win Science Journalism Awards
Two Sky & Telescope authors have won prestigious awards recognizing excellence in science journalism.
Sunday Night's Total Lunar Eclipse
North American skywatchers can see the Moon turn a reddish hue as it flirts with Earth’s shadow on the night of May 15–16.
How to Look at the Sun Safely
Our star is an amazing object to observe, whether by eye or with optical aid. These time-tested tips will let you see the solar disk worry-free.
Four Things to Know About the Next Solar Eclipse
Prepare for the 2020 solar eclipse with these basic facts and other resources.
Mission Update: Mars and the Moon
Mission teams presenting at this week's Lunar and Planetary Science Conference provided updates on the Perseverance and Zhurong rovers at Mars, Chang'e 5's lunar sample return, and more.
Total Solar Eclipse: Reports from Antarctica
Sky & Telescope and friends report on the total solar eclipse that occurred over Antarctica earlier this week.
North America Favored for This Week's Deep Partial Lunar Eclipse
North American observers can watch the Moon turn a reddish hue as it flirts with Earth’s shadow on the night of November 18–19 in the longest partial eclipse of the century.
Willmann-Bell Books Now Available
The AAS is honored to be continuing the legacy of Willmann-Bell, Inc. by selling and publishing their robust catalog of astronomy books as an imprint of AAS Sky Publishing, LLC.
AAS Journals Will Switch to Open Access in 2022
Research results in astronomy, solar physics, and planetary science are about to become more widely accessible to scientists and the public alike. The American Astronomical Society (AAS) today announced the switch of the Society’s prestigious journals to fully open access as of 1 January 2022.
Under this change, all articles in the AAS journal portfolio will be immediately open for anyone to freely read. The transition will affect the Astronomical Journal (AJ), the Astrophysical Journal (ApJ), Astrophysical Journal Letters (ApJL), and the Astrophysical Journal Supplement Series (ApJS).
“True” Blue Moon Occurs Sunday, August 22nd
If skies are clear this weekend, we’ll see the full Moon. And not just any old full Moon, but the Blue Moon — the “true” Blue Moon.