Pakistan Christian TV

Breaking news and world news from Pakisthan Christian TV on Business, Sports, Culture. Video news. News from the US, Europe, Asia Pacific, Africa, Middle East, America.

بالبلدي: تطوير خاصية سكان في تطبيق سناب شات وزيادة وظائفها

The James Webb Telescope discovers two of the oldest galaxies in the universe

belbalady.net Washington_Arabs Today

The James Webb Space Telescope has discovered two of the oldest galaxies ever seen in the universe, and they are much brighter than expected, meaning astronomers are rethinking their beliefs about how the first stars formed.

The two galaxies are believed to be billions of years old, just 100 million years after the Big Bang. Webb can look at some of the oldest galaxies, because he works in the infrared range, which means he can see redshift galaxies, Digitartlends reported.

The redshift occurs when the light from a distant galaxy shifts to the red end of the spectrum due to the expansion of the universe. Webb can see it.

Previous research has estimated that some of the galaxies Webb detected could have a redshift of up to 14, but the latest results are more accurate thanks to better instrument calibrations and indicate redshifts for the two galaxies of 10.5 and 12.5, respectively.

Webb also takes advantage of a phenomenon called gravitational lensing, in which a massive object such as a galaxy or cluster of galaxies has so much mass that it warps through space and acts like a magnifying glass, allowing researchers to see more distant galaxies behind it.

You may also be interested:

Disclaimer: The Baladi website works automatically without human intervention, and therefore all articles, news and comments published on the site are the responsibility of their owners and the management of the site does not bear any moral or legal responsibility for the content of the site.
“All rights reserved to their respective owners”

See also  Apple unveils "iPhone 13" .. Video

Source :” Arabs today