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...

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...

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...