SUNSET: 
The Moon Is "Blue" This Wednesday...Or Is It?
If skies are clear this Wednesday, you'll see the full Moon — but it's not the "true" Blue Moon.
Signal Found from Supermassive Duo's Second Black Hole
Astronomers have long suspected that a distant quasar harbors not one but two supermassive black holes. They've now detected OJ 287's second black hole.
Travel Diary: The Skies and Astronomical Sights of Hawai'i
Last March, S&T editor Diana Hannikainen accompanied a group of stargazers to the islands of Hawai'i on an astronomical adventure.
"Discover the Night" During International Dark Sky Week, April 15–22
Protect the night sky — join the International Dark-Sky Association for activities during International Dark-Sky Week.
Peering Up Into Prairie Skies
The Nebraska Star Party offers truly dark skies enjoyed by veteran observers and first-timers alike.
Citizen Science: Projects & Collaboration
Citizen Scientists Detect Dusty Disks
Disk Detective, a citizen science project dedicated identifying planet-forming disks around young stars, reports their latest results.
Supernovae Swept Out Barnard's Loop in Orion
Astronomers have mapped Orion in 3D to understand the origin of the large arc of Barnard’s Loop — and you can interact with the 3D image!
Piano Concerto on the Planets Premieres
A piano concerto based on the solar system’s planets just had its world premiere. And you can hear a sampling of the music right here!
Celebrate Dark Skies This Week, April 22–30
Are you interested in combating light pollution? International Dark Sky Week, which starts today, offers events in which you can learn how.
Two Years to the 2024 Total Solar Eclipse!
It’s never too early to start getting excited — and begin planning — for an event as spectacular as a total solar eclipse.
Under One Sky: Let's Address Light Pollution Together
Concerned about light pollution? Join a virtual conference this weekend that looks at ongoing global efforts to mitigate it.
International Observe the Moon Night 2021
Join fellow lunar enthusiasts all over the world in celebrating the Moon this weekend.
Discover the Night: International Dark Sky Week is Here!
Light pollution is insidious in today’s world. This International Dark Sky Week, become inspired to see what you can do to raise awareness.
Join Us in Planning for the Next "Great American Eclipse"
Are you a solar eclipse enthusiast with an organizational bent? An upcoming virtual workshop geared toward planning for the 2023 and 2024 events could be just the thing for you.
Under One Sky — Help Address Light Pollution
Do you care about protecting the night sky? Join the International Dark Sky Association’s virtual conference this weekend.
International Observe the Moon Night Is Here
International Observe the Moon Night is here. Step outside Saturday evening and admire our closest celestial neighbor with your family.
International Dark Sky Week Is Here: Celebrate the Night!
The weeklong celebration of the night sky we all share has always been an opportunity for people to connect with each other. This year, connecting with each other takes on a significance all its own.
Winter Stargazing in the Florida Keys
Every February, amateur astronomers flock to the Florida Keys to a dark-sky site for a week of stargazing at the Winter Star Party.
The 2020 Chambliss Amateur Achievement Award Goes To Dennis Conti
Each year, the American Astronomical Society confers the Chambliss Amateur Achievement Award for significant astronomical research carried out by an amateur astronomer. This year the award goes to Dennis Conti of the AAVSO.
TESS's First Year of Science
NASA’s latest exoplanet hunter has found more than two dozen new worlds, at least one of which might be habitable.
