Latest / Star Trails: From Backyard Astronomy to Cosmic Wonder
Little Red Dots at Cosmic Dawn
The James Webb Space Telescope has uncovered hundreds of tiny red points in the early universe. They are extraordinarily compact, unexpectedly bright and strangely quiet in the X-ray and radio wavelengths where an active black hole should reveal itself.Astronomers call them “little red dots,” but that modest nickname conceals one of the most intriguing mysteries of the Webb era.In this episode, we follow the clues hidden in their light. Some may contain young black holes buried inside enormous cocoons of hydrogen, objects researchers have nicknamed “black hole stars.” Others may be powered by…
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