SUNSET: 
Exoplanet in the Hyades Star Cluster
Professional and amateur astronomers working together have found a young exoplanet in the Hyades star cluster. The planet is weirdly large, given its host star.
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.
Watch Indonesia's Total Solar Eclipse Live!
On March 9th — late on Tuesday, March 8th, in the U.S. — the Moon will completely cover the Sun. Check here for the links you'll need to see this celestial spectacle as it happens.
Hubble Finds Most Distant Galaxy Yet
Astronomers using the Hubble Space Telescope have measured a precise distance to a galaxy dwelling in the cosmic dawn.
Mysterious Radio Burst Repeats Itself
A brief burst of radio waves has been observed repeating, enabling astronomers to settle its exotic origin.
A Cold New View of the Milky Way Galaxy
A stunning submillimeter mosaic of the Milky Way Galaxy captures a portrait of the cold dust and gas swirling along the galactic plane.
Tour March's Sky: Jupiter Ascending
After months of excitement in the predawn sky, the action is shifting to the evening — where Jupiter rises early and the stars of Orion anchor an array of celestial sights.
March's Total Solar Eclipse in Indonesia
On March 9th, a total solar eclipse will cross parts of Sumatra, Borneo, Sulawesi, and the Pacific. Use our map to find out what you'll see at any location.
Hubble Sheds Light on Super Exoplanets
New observations from the Hubble Space Telescope are helping characterize the atmospheres of exotic planets such as 55 Cancri e.
Astronomers Pinpoint Mysterious Radio Burst
A radio burst with the energy of a hundred million Suns has finally been placed on the cosmic map, enabling scientists to investigate the origin of these mysterious bursts.
WFIRST: Next Decade's Space Telescope
NASA is commencing work on the Wide Field Infrared Survey Telescope (WFIRST), the successor to the Hubble and the James Webb Space Telescopes.
New X-ray Observatory Takes to the Skies
Japan’s newest X-ray satellite, Hitomi (formerly Astro-H), promises to reveal the hot and hidden universe.
Jupiter Jumps Back Into The Evening Sky
Jove begins a new apparition with a redder Red Spot, pirouetting moons, and ever-changing cloudscapes.
The Mystery of Pluto's Floating Hills
Among its other geologic oddities, Pluto has clusters of hills floating in a frozen "sea" dominated by nitrogen ice. These bobbing bumps might hold clues to the plain's depth and evolution.
How Astronomers Count Sunspots
A multi-year investigation revealed errors in our understanding of the Sun.
Gravitational Wave Detection Heralds New Era
LIGO scientists have announced the direct detection of gravitational waves, a discovery that won't just open a new window on the cosmos — it'll smash the door wide open.
Planet Hunter Wins Amateur Research Award
The Chambliss Amateur Achievement Award, issued annually by the American Astronomical Society (AAS) "for exemplary research by an amateur astronomer" if there is a suitable candidate, goes to Darryll LaCourse of Marysville, Washington.
Galaxies Hidden Behind the Milky Way
Astronomers have detected hundreds of galaxies lying hidden behind the Milky Way's disk, many of which belong to the so-called Great Attractor, or Norma Supercluster.
Mirror Assembled for Hubble's Successor
NASA has assembled the primary mirror for the James Webb Space Telescope, a big step on the way to the telescope’s October 2018 launch.
Dark Matter Makes Galaxy Clusters Clump
How much galaxy clusters huddle together depends in part on how fast these clusters formed — and that formation rate depends on dark matter.
