# The little red dots breaking cosmic rules > James Webb found mysterious objects that glow like galaxies but behave like black holes. Two teams now think they have found something entirely new. - Title: The little red dots breaking cosmic rules · WIRED | Shortify - Summary: James Webb found mysterious objects that glow like galaxies but behave like black holes. Two teams now think they have found something entirely new… - Keywords: james webb space telescope, little red dots, black hole stars, supermassive black holes, early universe, astronomy, anna de graaff, rohan naidu, roberto maiolino, little, red, dots - Source: WIRED — https://wired.com/story/inside-the-supermassive-debate-over-the-james-webb-telescopes-little-red-dots - Author: Charlie Wood - Published: 2026-10-24T09:00:00+00:00 - Read time: 4 min - Topics: james webb space telescope, little red dots, black hole stars, supermassive black holes, early universe, astronomy, anna de graaff, rohan naidu, roberto maiolino ## Webb finds mysterious bright specks The James Webb Space Telescope detected tiny, brilliantly bright objects glowing red across the early universe. They shine as brightly as entire galaxies but span just a pixel. Researchers called them little red dots. ## First theory: they are galaxies Astronomers initially thought little red dots were distant galaxies.But galaxies that bright would need to grow impossibly large in just hundreds of millions of years.Scientists dubbed them universe breakers for breaking the cosmic timeline. ## Second theory: they are black holes Detailed spectral analysis revealed hydrogen colors smeared across multiple shades, a signature of black holes. Astronomers concluded little red dots were supermassive black holes whose dust blocked blue light, making them appear red. ## But black holes behave strangely Most supermassive black holes flicker as they consume gas and beam powerful x-rays. Most little red dots did neither. Astronomers expected some strangeness in the early universe but remained puzzled by these objects. ## Spring twenty twenty-five: two exceptional dots In spring twenty twenty-five, Anna de Graaff at the Max Planck Institute for Astronomy in Heidelberg, Germany, and Rohan Naidu at the University of Hawai'i announced observations of two little red dots unlike any seen… > In all the millions of observations we've taken with ground-based telescopes, there's nothing that looks like these sources. ## The Balmer break discovery These two dots showed almost no blue light and a sharp brightness increase at a particular red wavelength called a Balmer break.This feature appears in hot hydrogen gas like stellar surfaces, not typical black holes. ## Introducing the black hole star De Graaff and Naidu proposed a new object: a black hole star. It combines a black hole core with a massive hydrogen gas shell that shines as brightly as billions of suns while hiding the… ## How a black hole star works A black hole at the core pulls gas around it, heating it and pushing energy outward.This prevents outer hydrogen layers from collapsing. > It's going to be a very messy system where stuff is being blown out and falling back in. ## Electron scattering explains broad lines Vadim Rusakov at the University of Manchester and collaborators found that electron scattering off hydrogen could explain the broad spectral lines. This supported the black hole star theory by removing one mystery. ## Black hole star date: March twenty, twenty twenty-five Three teams posted their findings on March twenty, twenty twenty-five. De Graaff's, Naidu's, and Rusakov's groups all supported the black hole star interpretation. Some researchers called it black hole star date. ## A new stage in black hole birth Black hole stars could represent the first stage of supermassive black hole formation.A black hole forms in a hydrogen shell, then eats its way out over time, gaining mass as it clears the gas away. > We are seeing the seed. This is the birth of potentially every massive black hole in the universe. ## The field becomes polarized The black hole star theory sparked fierce debate. Anna-Christina Eilers at the Massachusetts Institute of Technology noted the field had become very polarized over the interpretation of these mysterious objects. ## Roberto Maiolino's counter-argument Roberto Maiolino at the University of Cambridge argues little red dots are standard supermassive black holes. > The data is really compelling. I'm a little bit more dubious about the interpretation. ## Angle explains the redness Maiolino and Piero Madau at the University of California, Santa Cruz, propose that redness comes from viewing angle.The reddest dots are edge-on black holes with dust blocking blue light. ## Quasi-stars offer a third path Mitchell Begelman at the University of Colorado, Boulder, recognized quasi-stars in the little red dots.He and colleagues proposed quasi-stars in twenty oh six to explain impossibly massive black holes. ## Quasi-star model gains support In twenty twenty-six, Mauro Giavalisco at the University of Massachusetts, Amherst, and collaborators refined the quasi-star model. > We have billions and billions of hydrogen bombs exploding every second, and yet we see none of them. ## Red dots vanish over cosmic time In August twenty twenty-six, Dale Kocevski at Colby College found that little red dots become rarer as the universe ages. ## Hidden black holes are surprisingly small On September eight, Naidu, de Graaff, Eilers, and collaborators tested techniques for measuring black hole masses inside black hole stars. These hidden black holes seemed far less massive than standard exposed black holes. ## The universe may be messier than either theory Dale Kocevski suspects some little red dots are truly starlike as black hole star theorists argue, while others are standard black holes. > I have a sneaking suspicion that we're both right. ## Key takeaway Astronomers debate whether James Webb's mysterious little red dots are standard black holes or a new object called black hole stars that combine both properties.