High School Galaxy MoM-z14 - furthest observed object

[Astronuc]

MoM-z14 is the most distant known galaxy. Discovered on 16 May 2025 with a redshift of z = 14.44, it is pictured during the galaxy's formation about 280 million years after the Big Bang. As part of the cosmic timeline, MoM-z14 would have been formed during the Reionization Era of the early universe, when neutral hydrogen began ionizing due to radiated energy from the earliest celestial objects.

MoM-z14 is a remarkably luminous and compact galaxy. It has a mass of 108 solar masses making it similar in mass to the Small Magellanic Cloud (SMC). It appears to have gone through a time of high star formation at the time of our observation from around 13.53 billion years ago, giving off large amounts of ionizing photons, . . . .

https://en.wikipedia.org/wiki/MoM-z14

MoM-z14 was discovered on 16 May 2025 by Rohan Naidu and 45 co-discoverers, with the James Webb Space Telescope (JWST). Telescopes launched prior to the JWST did not have mirrors large enough to detect light coming from these distant galaxies.

Any photon with energy above 24.6 eV is going to ionize any atom. K, L X-rays would certainly ionize atoms.

https://www.scientificamerican.com/article/whats-the-most-distant-galaxy/

The James Webb Space Telescope has found the most distant galaxy ever seen, at the dawn of the cosmos. Again.​

https://www.skyatnightmagazine.com/news/webb-mom-z14

A Cosmic Miracle: A Remarkably Luminous Galaxy at z_spec = 14.44 Confirmed with JWST​

https://arxiv.org/abs/2505.11263

Back in 2022, before JWST began science operations, we had only one confirmed galaxy from the first 500 million years of cosmic history: GN-z11, discovered with the Hubble Space Telescope. Several other ultra-distant galaxy candidates existed, but they were just that: candidates. It would take a superior tool, like JWST, to find others, as well as to confirm or refute the ones we already had.

https://science.nasa.gov/blogs/webb...ce-telescope-finds-most-distant-known-galaxy/
https://esawebb.org/images/jades4/