Astronomers believe James Webb may have spotted some of the earliest galaxies we've ever discovered in recent observations.
Published Jan 13th, 2023 8:38PM ESTNew observations from the James Webb space telescope could give us a glimpse at the earliest galaxies we have ever discovered. Aled by Haojing Yan from the University of Missouri showcases 87 new galaxies, some of which astronomers believe could date back to around 13.6 billion years ago.
At that dating, these new galaxies would be some of the earliest galaxies that we have ever discovered, having existed just 200 million years after the events of the Big Bang. They say that’s when the light we’re seeting today would have been emitted. Of course, these same systems and stars would have changed drastically since then. They might even be dead.and galaxies from faraway places.
Astronomers are using Webb to peer deeper than ever into our universe’s history. Image source: Vadimsadovski / Adobe That’s because dating a galaxy is tough work, as it means having to measure the “redshift” of the galaxy. The redshift is how much the light it emits has stretched toward longer red wavelengths. This tells astronomers how quickly the galaxy is moving away from us, which helps measure the distance the photons from its stars had to travel to reach Earth.
It’s a complex process because you literally have to measure the distance those photons traveled at the speed of light before reaching a space telescope near our planet – in this instance,. So, the researchers will need to measure that redshift to determine if these are in fact some of the earliest galaxies we’ve discovered.
México Últimas Noticias, México Titulares
Similar News:También puedes leer noticias similares a ésta que hemos recopilado de otras fuentes de noticias.
James Webb Telescope makes its first exoplanet discoveryEarth-sized planet or LHS 475 b is relatively close, at only 41 light-years away, in the constellation Octans, NASA researchers say, but couldn't confirm if it has an atmosphere.
Leer más »
NASA's James Webb Telescope finds first exoplanet almost exactly the same size as EarthThe James Webb Telescope hit another milestone on Wednesday, identifying its first exoplanet 41 light-years away that is almost exactly the same size as Earth.
Leer más »
NASA's James Webb Space Telescope discovers its first exoplanetThe James Webb Space Telescope spotted its first exoplanet with the Near-Infrared Spectrograph, and released two transit observations.
Leer más »
The James Webb Space Telescope just identified its first exoplanetOnly 41 light years from Earth, LHS 475 b is the James Webb Space Telescope's first confirmed exoplanet.
Leer más »
James Webb Space Telescope notches 1st rocky planet confirmationSharmila is a Seattle-based science journalist. She found her love for astronomy in Carl Sagan's The Pale Blue Dot and has been hooked ever since. She holds an MA in Journalism from Northeastern University and has been a contributing writer for Astronomy Magazine since 2017. Follow her on Twitter at Sharmilakg.
Leer más »