Astronomers have tracked a dramatic "changing-look" active galactic nucleus (AGN) whose central supermassive black hole appeared to switch off and then rapidly reignite. The galaxy, HE 1237−2252, ...
Cornell astronomers are deploying a new instrument that grants them, for the first time, a better view of the universe's ...
Discover how an Ishikawa diagram identifies cause and effect in processes, aiding quality control in manufacturing and ...