Some 230 million light-years from Earth, there’s a black hole going places. These extraordinarily dense objects are usually found sitting at the center of a galaxy violently gobbling up matter, so it was a surprise when astronomers spotted this one moving out of step with its resident galaxy.Read...
Radio astronomy
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Video of the recent collapse at the Arecibo Observatory, taken from two different perspectives, show the dramatic moment when a main cable failed, causing the 900-ton instrument platform to fall onto the large radio dish below.Read...
As feared, the 900-ton instrument platform collapsed yesterday at the Arecibo Observatory in Puerto Rico, falling onto the gigantic radar dish below. Photos of the scene are revealing the extent of the damage at the famous facility, which is known for contributing to the search for extraterrestrial...
‘A Magically Surreal Symbol of Human Ingenuity’: Scientists Reflect on Arecibo’s Doomed Big Dish

The big dish at the Arecibo Observatory in Puerto Rico is on the verge of collapse, leaving officials with no choice but to retire the famous radio telescope. Astronomers around the world are now having to face a grim reality: that this dutiful dish—in service for the past 57 years—is no...
Yesterday brought the tragic news that the famous 1,000-foot radio dish at the Arecibo Observatory in Puerto Rico will have to be demolished after the failure of two support cables. It’s the end of an era, but a good excuse to revisit some of the most important scientific contributions made...
Arecibo Heartbreak: Iconic SETI Dish Will Be Demolished Due to Risk of ‘Catastrophic’ Collapse

The recent failure of two support cables at the Arecibo Observatory in Puerto Rico has destabilized the structure such that it cannot be repaired without placing construction workers at significant risk, according to officials with the National Science Foundation. As feared, the beloved 1,000-foot...
The Arecibo Observatory in Puerto Rico is in an exceptionally precarious state following the recent failure of two support cables, placing the future of this renowned facility in doubt.Read...
Another cable has fallen onto the reflector dish at the Arecibo Observatory in Puerto Rico, in yet another frustrating setback for this beloved facility.Read...
The iconic Arecibo Observatory in Puerto Rico was damaged last week when a large cable fell onto the radio telescope’s main reflector dish. We’re now learning more about this unfortunate incident, including how long it might take until the beleaguered observatory is back online.Read...
Two PANOSETI telescopes are installed in the recently renovated Astrograph Dome at the Lick Observatory in California. PANOSETI will use a configuration of many SETI telescopes to allow simultaneous monitoring of the entire observable sky. (© Laurie Hatch Photo via UCSD)The search for...
Two PANOSETI telescopes are installed in the recently renovated Astrograph Dome at the Lick Observatory in California. PANOSETI will use a configuration of many SETI telescopes to allow simultaneous monitoring of the entire observable sky. (© Laurie Hatch Photo via UCSD)The search for...