SUNSET: 
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.
Solar System Featured on New U.S. Stamps
The U.S. Postal Service has unveiled new stamps, to be issued later this year, that feature 10 solar-system objects — including Pluto.
New Star and Exoplanet Names OK'd by IAU
Following a wildly popular contest, the International Astronomical Union has named 14 stars and 31 planets that orbit them.
Rate the Darkness of Your Sky
A new website shows how light pollution spreads around the globe — using data gathered by its users.
White House Hosts Second Astronomy Night
For the second time during his tenure, President Obama invited amateur astronomers to join him on the South Lawn for an evening of stargazing.
Geoff Marcy, Exoplanet Leader in Sexual Harassment Case, Resigns
Geoffrey Marcy, a top figure in exoplanet discovery, sexually pressured and harassed students and researchers for at least a decade.
ISS Photos Yield "Cities at Night" World Map
Researchers on the ground have combed through a trove of images taken by orbiting astronauts to reveal unprecedented details about light pollution streaming from Earth's major cities.
"Breakthrough Listen": Giant Leap for SETI
A $100 million donation will radically speed up the search for artificial signals from the nearest million stars — and from trillions of much farther stars in the 100 nearest galaxies.
More Discord Over Thirty Meter Telescope
Clashes over building the premier telescope in the Northern Hemisphere and preserving Mauna Kea as a sacred site have intensified.
Test Flight Success for Orion Spacecraft
On December 5th, NASA successfully launched the first test flight of its Orion capsule. Scheduled to carry astronauts beyond low-Earth orbit in the 2020s, the spacecraft is NASA’s first deep-space people transporter since the Apollo days.
Work Begins on Thirty Meter Telescope
Officials proceeded with groundbreaking ceremonies for the world's largest optical telescope on October 7th amid protests from native Hawaiians who oppose it.
Calling All Amateur Astronomers
NASA’s Night Sky Network is conducting a new survey in order to better help the amateur astronomy community.
Amateur Comet Hunters Get 2013 Award
Now in its 15th year, the Edgar Wilson Award recognizes comet discoveries made by amateur observers. The 2013 awards honor seven dedicated individuals who scan the skies.
Global "Fail" for the Big Regulus Cover-up
There was widespread hope that thousands of skywatchers would see the bright star Regulus briefly occulted by an asteroid early on March 20th. In the end, likely <u>no one</u> saw it. Here's why.
Dawn of a New Cosmos
A big-budget television series about astronomy — a much-anticipated sequel to the iconic 1980 original — debuts this weekend in 174 countries and 47 languages.
Name a Mars Crater with Uwingu
Here’s what you need to know about a new fundraising venture, the race to name 500,000 craters on Uwingu’s Mars map.
A New Year's Resolution
Let's commit to stopping the spread of light pollution, the single greatest threat to our enjoyment of the night sky.
