【#Tech24H】Against the deep backdrop of the vast cosmos, a batch of peculiar “little red dots” in data transmitted back by the James Webb Space Telescope has sparked great interest among scientists. Scientists have discovered that the spectral characteristics of these red dots precisely match a theoretically predicted scenario: when photons pass through dense gas clouds orbiting black holes, they repeatedly collide and scatter with electrons within the clouds. After multiple scatterings, high-energy photons lose some of their energy, causing their wavelengths to stretch, ultimately appearing red in observations.