Astronomers Find an X-Ray Key to the Red Dot Mystery

Astronomers Find an X-Ray Key to the Red Dot Mystery
By Carolyn Collins Petersen (https://ift.tt/8O7sQBR)

Ever since JWST first began peering out at the early Universe a few years ago, astronomers have been spotting strange "little red dots" (LRDs) in its infrared images. There are hundreds of these compact blobs at very high redshifts at distances of about 12 billion light-years. Astronomers think they began forming some 600 million years after the Big Bang. That makes them players in the infancy of the cosmos. They appear red in optical light and blue in the ultraviolet. So, what are these strange objects?

May 11, 2026 at 01:34AM
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