SUNSET: 
Arecibo's To-be-determined Future
As cleanup operations are underway at Arecibo Observatory in Puerto Rico, some scientists are proposing a replacement for the esteemed radio dish.
Astronomy in Space with David Dickinson
Green Bank Tests New Planetary Radar
A newly installed planetary radar system on the Green Bank Radio Telescope will probe the solar system in detail.
China Opens World's Largest Radio Telescope to International Scientists
Scientists outside China will be allocated around 10% of observation time on its gigantic radio telescope following the collapse of Arecibo.
How to Warn of Imminent Neutron Star Collisions
What if gravitational-wave observatories could send out alerts right after — or even before — receiving signals of neutron star collisions?
The Arecibo Telescope Has Collapsed [Video]
The Arecibo telescope in Puerto Rico has collapsed less than two weeks after officials announced it was too dangerous to attempt repairs.
Iconic Arecibo Telescope Damaged, To Be Dismantled
The iconic Arecibo telescope, damaged by two cable failures within three months, is beyond repair.
Another Cable Snaps at the Arecibo Observatory
Engineers are looking at stabilizing the dish, as the Arecibo Observatory has suffered a second cable failure.
Mount Wilson Escapes Wildfire; Amateur Observatory Destroyed
Firefighting crews held the line as wildfire threatened Mount Wilson; an amateur observatory built by the Tri-Valley Stargazers was not so lucky.
Astronomy in Space with David Dickinson
Historic Lick Observatory Survives California Fire
The Lick Observatory, a major astronomical institution outside San Jose, has survived a devastating California wildfire mostly unscathed.
Astronomy in Space with David Dickinson
Iconic Arecibo Radio Dish Damaged
A broken support cable at the Arecibo radio observatory brings operations to a halt.
New Launch Date for James Webb Space Telescope
NASA has delayed its beleaguered James Webb Space Telescope to October 2021, in part due to the COVID-19 pandemic.
First All-sky Map from eRosita
The first all-sky X-ray map to be released in 30 years reveals new wonders of the hot and energetic universe.
Astronomy in Space with David Dickinson
NASA Renames WFIRST: The Nancy Grace Roman Space Telescope
NASA is renaming its next flagship space observatory to honor pioneering NASA astronomer and "Mother of Hubble," Nancy Grace Roman.
Celebrating 30 Years: The Universe Through Hubble's Eye
Amateurs celebrate the venerable space telescope’s 30th anniversary with a look at some of its most mesmerizing images.
Spitzer's Legacy: One of NASA's Great Observatories Ends Its Mission
NASA’s premier eye on the infrared sky is shutting down after operating more than three times longer than designed.
First Light from the World's Largest Solar Telescope
The Daniel K. Inouye Solar Telescope has taken its first image of the Sun, a detailed view of our star's boiling gases that far surpasses what was possible before. Science operations are set to begin later this year.
Dark Energy Survey Sees First Light
The Dark Energy Spectroscopic Instrument is poised to record millions of galaxies as far back as 11 billion years ago to unveil the nature of dark energy.
First Light for German X-ray Telescope EROSITA
The EROSITA X-ray telescope aboard the German-Russian Spektr-RG satellite has taken its first images of the hot universe.
Maunakea Observatories Shuttered Amid Protests (Update: Observatories Have Reopened)
As protests against the construction of the Thirty Meter Telescope continue, the directors of Maunakea Observatories have taken the unprecedented move of closing all observatories atop the mountain.
German-Russian Astronomy Satellite Launches
Spektrum-Röntgen-Gamma, a long-delayed and much-modified X-ray astronomy package, launched successfully from the Kazakh Steppe on Saturday.
