CAPE CANAVERAL, Fla. -- Europe’s Euclid space telescope has detected a rare halo of bright light around a nearby galaxy, astronomers reported Monday. The halo, known as an Einstein ring, encircles a ...
The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration. At the same time several telescopes, including the Chandra X-ray Observatory ...