Scientists discover oldest known galaxy

One of the goals of the James Webb Space Telescope was to discover the first stars and galaxies in

Universe. In some data released by NASA, researchers spotted as many as five galaxies that were already in existence just a few hundred million years after the Big Bang. Discuss

The images in this dataset representedconsist of long exposures made in different parts of the infrared spectrum. The entire wavelength range covered by the NIRCam instrument was divided into seven fragments, and each fragment was filmed for 1.5 – 6.5 hours. A large international team of researchers looked for objects that were present in Webb's images of the lowest energy regions of the infrared spectrum, but absent from the higher energy regions. And the exact point at which they disappeared indicated how much redshift was cut off for that galaxy, and therefore how distant it was.

This method allowed us to obtain five differentobjects of interest and "rough" The work is devoted to the two most distant of them: GLASS-z13 and GLASS-z11. The first object (pictured right) is even further away than the farthest confirmed distance yet seen in the Hubble field; if confirmed, this would make it the most distant object we know of, and therefore the closest in time to the Big Bang.