Astrophysicists propose the universe's first stars, heated by dark matter, were supermassive 'DarkStars' 🌟 Evidence of their existence may have been found by the James Webb Space Telescope 🔭✨
All but one of the giant balls of hydrogen and helium known as stars, appear to us on Earth as pinpricks of light filling the night sky. Astronomers well understand the nature of these objects, how they are powered by the process of fusion and how they evolve over their lifetimes of several billion years.
But the James Webb Space Telescope, by far the world’s most powerful telescope, is sensitive enough to detect light from galaxies that formed just a few hundred million years after the Big Bang. Indeed, a program called the JWST Advanced Deep Extragalactic Survey has already found numerous examples.Now Cosmin Ilie at Colgate University in New York, and colleagues, say that some of these objects may not be galaxies at all but supermassive Dark Stars instead.
Nobody knows the nature of dark matter but one theory is that it is its own antiparticle. So when two dark matter particles collide, they annihilate, heating up any visible matter nearby. That will focus intense attention on these objects and more evidence is desperately needed. An important factor is that the JWST cannot see individual conventional stars from that period, only galaxies of them. By contrast, the JWST can see single Dark Stars because they are much larger and brighter.So a key question is what is the difference between the light produced by an early galaxy of conventional stars and by a single supermassive Dark Star.
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