SUNSET: 
How to Measure Jupiter's Deflection of Starlight
Get involved in an extraordinary experiment to test Einstein's theory of General Relativity — and you can do it from your backyard.
The DEB Initiative: How Citizen Scientists Can Help Broadcast Eclipses
A citizen-science project aims to broadcast the eclipses coming up this year and next.
"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.
Light Pollution Is Increasing Even Faster Than We Realized
The average brightness of the night sky is increasing by 10% every year, making the stars less visible.
Light Pollution Is Creeping Up on the World's Observatories
Astronomical observatories enjoy some of the world’s darkest night skies. But even there light pollution is spreading, a new study suggests.
Bright New Satellites Join a Crowded Sky — Here’s How You Can Help
The imminent launch of a BlueWalker satellite, with a giant phased array antenna, portends a brightening night sky. Amateur astronomers can help record these changes with the goal of mitigating them.
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.
What we know about Light Pollution – and What We Don’t
The International Dark-Sky Association’s has summarized more than 300 peer-reviewed studies on the effects of artificial light at night in an effort to help dark-sky advocates.
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.
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.
Pittsburgh Goes Dark: Could This New Dark-Sky Ordinance Begin a Trend?
The city's parks, facilities, and streetlights will all get dark-sky-friendly lighting, but is it too early for amateur astronomers to get excited?
The Pandemic and Light Pollution
Student Kathryn Huth set out to conduct astronomical experiments when she noticed that — amidst the pandemic — she could see more stars in the sky.
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.
Amateur Astronomers Reveal Long-Ago Galaxy Mergers
The images from five Brazilian amateur astronomers have captured Hubble-level details in galaxies, laying the ground for future work in understanding their histories. Want to join the fun?
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.
Citizen Science: Projects & Collaboration
Taking Stock of Backyard Worlds
Scientists have used the Spitzer Space Telescope to confirm seventy-five new substars uncovered by the citizen science project Backyard Worlds: Planet 9.
Calling on Amateur Astronomers: Observe Venus!
The Mercury-bound BepiColombo spacecraft will fly by Venus on October 15th, and the mission is asking amateurs for their help.
Astronomy in Space with David Dickinson
Amateur Astronomer Discovers "Clyde's Spot" on Jupiter
The discovery of a new feature on Jupiter gave NASA’s Juno mission an opportunity to image an emerging storm up close.
Photographers “Capture the Dark” with Stunning Images of the Night
Stunning images of the night remind us why we need to protect dark skies. See the photos that won the International Dark-sky Association's contest.
