The early universe could be home to huge stars powered by dark matter annihilation instead of fusion – and the James Webb Space Telescope may have already found some
NASA/ESA
The James Webb Space Telescope may have spotted weird stars powered by dark matter instead of nuclear fusion. If these stars are really out there, it could solve three major cosmic mysteries in one fell swoop. Regular stars form when a cloud of dust and gas becomes so massive that it collapses in on itself, and the pressure and temperature in the centre are high enough to begin the process of nuclear fusion, wherein atoms slam together and merge into heavier elements. So-called dark stars wouldn’t have any fusion at all – in the early universe, they could form from similar clouds rich in.
“They’re very bizarre stars – in radius they’re around 10 AU [astronomical units, the distance between Earth and the sun], so they’re puffy beasts, and there’s no core,” saysat the University of Texas at Austin. “They’re relatively cool throughout, and because they’re so cool there’s nothing that’s preventing accretion onto them, so they grow – they can grow to a million solar masses, a billion solar luminosities, maybe even more.
Argentina Últimas Noticias, Argentina Titulares
Similar News:También puedes leer noticias similares a ésta que hemos recopilado de otras fuentes de noticias.
James Worthy Says LeBron James Could Get Statues In L.A., ClevelandJames Worthy tells TMZ Sports he could definitely see LeBron James getting statues in Cleveland AND Los Angeles one day.
Leer más »
Webb telescope captures tantalizing evidence for mysterious 'dark stars'Scientists for the past 15 years have been looking for evidence of a type of star only hypothesized but never observed - one powered not by the fusion of atoms like the sun and other ordinary stars but by mysterious stuff called dark matter.
Leer más »
Webb telescope spies most distant supermassive black hole ever recorded | CNNThe James Webb Space Telescope has delivered yet another astounding discovery, spying an active supermassive black hole deeper into the universe than has ever been recorded.
Leer más »
How a 28-year-old NFL backup became Sean Payton, Broncos' ideal candidate to coach Russell WilsonDavis Webb sat on the couch and asked for a depth chart.
Leer más »
No, James Cameron Is Not Making a Movie About the Titan Sub TragedyJames Cameron has strongly denied a report that he is 'in talks' to direct a streaming series about the Titan submersible tragedy
Leer más »
James Cameron Denies Working on an OceanGate MovieDirector James Cameron shut down any rumors about working on a movie about the OceanGate submersible incident.
Leer más »