A small galaxy that existed half a billion years after the Big Bang could be the key to understanding what ended the 'cosmic dark ages.'
's NIRSpec instrument, which also detected strong emission from hydrogen and oxygen gas clouds within RX J2129-z95. These emission lines in the galaxy's spectrum have revealed some of RX J2129-z95's extraordinary properties.
For example, RX J2129-z95 is just 105.6 light-years across, which is tiny compared to the 100,000 light-year-diameter of ouror even modern dwarf galaxies that span several thousand light years. Yet despite having a volume a thousand times less than the Milky Way, RX J2129-z95's rate of star formation is the same as our galaxy's, meaning it is much more intense.
JWST is finding that such high star-formation rates are a fairly typical trait of galaxies in the early universe, but RX J2129-z95 is extreme even as far as high-redshift galaxies go.
Norge Siste Nytt, Norge Overskrifter
Similar News:Du kan også lese nyheter som ligner på denne som vi har samlet inn fra andre nyhetskilder.
'Green Monster' supernova is the youngest in the Milky Way, James Webb telescope revealsNew James Webb Space Telescope images reveal the grisly past of Cassiopeia A, the youngest known supernova remnant in the Milky Way.
Les mer »
Cosmic Time Travel: Webb Unveils Physical Properties of Compact Galaxy From the Early UniverseThe James Webb Space Telescope has observed a gravitationally lensed galaxy from 510 million years after the Big Bang, revealing insights into the early Universe's reionization process and the characteristics of the earliest galaxies. New James Webb Space Telescope (JWST) imaging and spectroscopy
Les mer »
JWST’s Newfound Galaxies Are the Oldest Ever SeenWe now know that the first galaxies in our universe formed shockingly fast, thanks to the latest results from the James Webb Space Telescope
Les mer »
After James Webb controversy, NASA rethinks honorary mission namesWebb’s critics say he was complicit in the firing of gay and lesbian employees during the “Lavender Scare” starting after World War II.
Les mer »
The Webb of Life: Exploring New Star Formation and the Universe’s Ancient SecretsNASA's James Webb Space Telescope observed the Hubble Ultra Deep Field, providing high-resolution images and valuable data on the early universe's galaxies. This information aids in understanding galaxy reionization and was made public for diverse analysis and refining data analysis techniques. O
Les mer »
Webb shows areas of new star formation and galactic evolutionOn Oct. 11, 2022, NASA's James Webb Space Telescope spent over 20 hours observing the long-studied Hubble Ultra Deep Field for the first time. The general observer program (GO 1963) focused on analyzing the field in wavelengths between approximately 2 and 4 microns.
Les mer »