Astronomers confirm the age of most distant galaxies using oxygen

Image of galaxy GHZ2/GLASS-z12 with associated ALMA spectrum. ALMA’s deep spectroscopic observations revealed a spectral emission line associated with ionized oxygen near the galaxy, which has been shifted in its observed frequency by the expansion of the universe since the line’s emission. Credit: NASA/ESA/CSA/T. Treu, UCLA/NAOJ/T. Bakx, Nagoya U A new study led by a … Read more

Cosmic Noon appeared billions of years ago, when many galaxies were filled with star-forming nebulae like this one

You’re looking at NGC 346, a star cluster 210 light-years away that’s vigorously pumping out brand-new stars from a dense cloud of gas and dust. Between 10 and 11 billion years ago, nearly all galaxies in the universe underwent an intense star formation era similar to what we see in NGC 346. This wave of … Read more

Researchers measure the relationship of luminosity magnitude to galaxies less than a billion years after the Big Bang

from the Kavli Institute for the Physics and Mathematics of the Universe, University of Tokyo Figure 1. Two exceptionally bright galaxies captured in the GLASS-JWST programme. These galaxies existed about 450 and 350 million years after the Big Bang (with redshifts of about 10.5 and 12.5, respectively), and their sizes are approximately 500 parsecs and … Read more

The James Webb Space Telescope finds the first exoplanet

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news of amazing discoveries, scientific advances, and more. CNN – The James Webb Space Telescope could add another cosmic achievement to its list: the space observatory was used to confirm the existence of an exoplanet for the first time. The celestial body is … Read more

The discovery of three faint, distant galaxies may expand knowledge of the early universe

Researchers have discovered the first ultra-faint dwarf galaxies found around a Milky Way-mass spiral galaxy outside the group of galaxies that includes the Milky Way and Andromeda. Pictured here is one of the three galaxies, Scl-MM-dw5, with its stars clustered in the center. Galaxies are estimated to be 12 billion years old, and almost all … Read more

A new study reveals a great diversity of galaxies in the early universe

Credit: Unsplash / CC0 Public Domain New data from the James Webb Space Telescope (JWST) reveals that the structures of galaxies in the early universe were more diverse and mature than previously known. Scientists recently compared images of hundreds of galaxies taken by JWST’s Cosmic Evolution Early Science Survey (CEERS) with corresponding images taken previously … Read more