The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

NASA’s Hubble Space Telescope reached a remarkable milestone—its 100,000th exposure, capturing an image of a quasar located 9 ...

Giant quasar and little red dots. A NASA/ESA/CSA James Webb Space Telescope (JWST) NIRCam picture of the luminous quasar J1148+5251, an extremely rare active supermassive black hole of 10 billion ...