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James Webb Space Telescope
Extra-Long Blasts Challenge Our Theories of Cosmic Cataclysms
Astronomers thought they had solved the mystery of gamma-ray bursts. A few recent events suggest otherwise.
JWST Spots Giant Black Holes All Over the Early Universe
Giant black holes were supposed to be bit players in the early cosmic story. But recent James Webb Space Telescope observations are finding an unexpected abundance of the beasts.
Astronomers Say They Have Spotted the Universe’s First Stars
Theory has it that “Population III” stars brought light to the cosmos. The James Webb Space Telescope may have just glimpsed them.
Standard Model of Cosmology Survives a Telescope’s Findings
Reports that the James Webb Space Telescope killed the reigning cosmological model turn out to have been exaggerated. But astronomers still have much to learn from distant galaxies glimpsed by Webb.