SUNSET: 
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.
Town Votes to Protect the Holmdel Horn That "Heard" the Big Bang
Redevelopment plans could threaten the site that houses the Holmdel Horn, the instrument responsible for hearing the "hiss" of background radiation from the Big Bang.
Apollo 17 in Pictures: “God Willing, as We Shall Return”
On the 50th anniversary of Apollo 17, we look back at iconic photos as well as rarely seen images from the mission.
A Celebration of Jay Pasachoff (1943–2022)
Jay M. Pasachoff, Chair of the Astronomy Department, Director of the Hopkins Observatory, and Field Memorial Professor of Astronomy at Williams College in Williamstown, Massachusetts, succumbed to cancer on Sunday morning, November 20th.
BlueWalker 3 Satellite Unfolds, Brightening 40-fold
The unfolding of the BlueWalker 3's giant flat-panel antenna array resulted in a satellite 40 times as bright, outshining most stars.
Astronomy in Space with David Dickinson
Lift-off! NASA Launches Artemis 1 Mission to the Moon
NASA’s next-generation Moon rocket has left the launchpad on the first flight of the Artemis program.
National Science Foundation Will Not Rebuild Arecibo
While the NSF plans to establish an educational center at the Arecibo Observatory, the institution has stated it will not fund science there.
Astrophotographer of the Year Awards
The Royal Observatory Greenwich has announced the winners of the 14th annual Astronomy Photographer of the Year contest.
Astrophotography: Tips & Techniques
Photographers "Capture the Dark" in Stunning Images
The International Dark-Sky Association celebrates photography's role in the fight against light pollution. Here are this year's contest winners!
Astronomy in Space with David Dickinson
The Hazards of Uncontrolled Reentries from Space
A recent study examines the risk posed to human life by reentering space debris as the number of rocket launches continues to grow.
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.
Years of Tensions at Mauna Kea May End with Peaceful Negotiations
New stewardship of Mauna Kea, a dormant volcano that hosts some of the world's largest telescopes, could change the face of astronomy at the summit.
How Astronomers Are Rendering the Universe in Sound
Presenting data as sound can open new opportunities for accessibility, engagement, and discovery, but the technique still faces challenges.
Found: Booster Impact Crater on the Farside of the Moon
The Lunar Reconnaissance Orbiter mission has found the impact site created March 4th. The crater might help reveal the impactor's identity.
Wildfire Threatens Kitt Peak National Observatory
The Contreras wildfire has been threatening the historic Kitt Peak National Observatory in southern Arizona.
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.
Floofy Objects and Other Tales of Astronomical Impossibility
Astronomers aren't holding back this year, with brand-new submissions to this year's highly prestigious (and fictitious) Acta Prima Aprilia.
Is “Slow Science” the Answer to Astronomy's Carbon Footprint?
The first quantitative assessment of professional telescopes’ carbon footprint finds that these facilities contribute more emissions than all other astronomy research activities combined.
Astronomy in Space with David Dickinson
Russia-Ukraine War: Impacts on Space (Updates)
Russia’s ongoing invasion of Ukraine has far-reaching consequences for spaceflight and the international space community.
Starlink Satellites Not Impacting Science — Yet
A new study of Starlink satellites’ impact on astronomy gives the community cause for both relief and concern.
