Understanding how galaxies grow has long stood as one of astronomy’s core challenges. Over time, … “Colliding galaxies ignite the universe’s most powerful black holes, Euclid data finds”

A distant stellar explosion has offered astronomers a rare natural experiment, one that turns gravity … “10 billion-year-old supernova sheds new light on cosmic expansion and dark energy”

A classical nova may look simple at first. A faint star brightens, sometimes enough for … “New images reveal an early-stage stellar eruption (nova) in stunning detail”