SUNSET: 
Millions of Americans Viewed August Solar Eclipse
The 2017 solar eclipse could easily be the most watched event in US history. Can we learn something from it?
Eclipse Aftermath Brings Lawsuit Against Amazon
Counterfeit eclipse glasses created great confusion in the days prior to the solar eclipse. Luckily few cases of eye damage have been reported.
The Eclipse as Seen by Citizen Scientists
Some academic and citizen-science groups came up with neat initiatives for eclipse day. Let’s find out how they did.
The Strolling Astronomer Celebrates 70 Years
Still active today, the Association of Lunar & Planetary Observers and its journal got their start on March 1, 1947.
Micrometeorites Found on City Rooftops
A recent study found micrometeorites in piles of dirt collected from urban European rooftops.
Get Funds for 2017 Eclipse Outreach Projects
Thanks to some timely NSF support, the American Astronomical Society is offering dozens of small grants to U.S. groups that offer outreach programs tied to the 2017 s
The Year 2016 Will Be One Second Longer
Do you think 2016 has seemed unusually long? An international agency has decided to make it even longer.
Vera Rubin, "Mother of Dark Matter," Dies
Astronomer Vera Rubin, known for her revolutionary work confirming the existence of dark matter, died on December 25th. She was 88.
"Library Telescope" Program Takes Off
From humble beginnings in 2008, a simple idea — equipping libraries with loaner telescopes — has caught on across the United States.
IAU Standardizes 212 Traditional Star Names
Bringing order to chaos, the International Astronomical Union has approved standardized spellings and designations for the traditional names of 212 bright stars.
Embracing the "Supermoon," Hyped or Not
Much has been said and written about the Moon's proximity to Earth today. Is that a good thing or a bad thing?
Daily Alert for Asteroid Flybys
A new e-digest from the International Astronomical Union’s Minor Planet Center gives the public a head’s up on passing asteroids.
1967 Solar Flare Nearly Took U.S. and Soviets to Brink of War
An historical study from former U.S. military officials found that a solar flare was nearly responsible for military conflict with the Soviet Union in May 1967.
Measuring the Impacts of Light Pollution
Light pollution is pervasive, and its impact on people is larger than you might think.
Celebrate Global Astronomy Month
Join the world’s largest celebration of astronomy — in person or via online webcasts of events — throughout April.
Navy Resumes Celestial Navigation Course
Modern security threats have brought back an old method — celestial navigation — to help U.S. Navy sailors navigate the high seas.
It's International Dark-Sky Week!
What began as a student's simple idea a decade ago has grown into a worldwide celebration of the night sky and easy ways to reduce light pollution.
Flood Threatens Photographic Plates
A burst pipe flooded Harvard College’s Observatory Hill, submerging thousands of historic photographic plates underwater. Recovery is now under way.
Help Keep Our Skies Dark — Join IDA Today
It's high time that we amateur astronomers got serious about protecting the night sky from light pollution.
How Astronomers Count Sunspots
A multi-year investigation revealed errors in our understanding of the Sun.
