Astronomers discover a very old galaxy similar to the Milky Way

INA- sources  

The galaxy, dubbed ZF-UDS-7329, contains more stars than the Milky Way and appears to have formed about 13 billion years ago.
It was spotted with NASA's James Webb Space Telescope (JWST), a tool built to observe these types of ancient galaxies and peer back into the early ages of the universe.

What's remarkable about this is that a galaxy so big should not have been able to form so early in the universe because dark matter did not yet exist, meaning a galaxy this size should not have been supported 800 million years after the Big Bang.

Dr. Themiya Nanayakkara, who led the spectral analysis of the JWST data, said, 'We are now going beyond what was possible to confirm the oldest massive quiescent monsters that exist deep in the universe. 

'This pushes the boundaries of our current understanding of how galaxies form and evolve. 
'The key question now is how they form so fast very early in the universe, and what mysterious mechanisms lead to stopping them forming stars abruptly when the rest of the universe doing so.'

Our universe is around 13.8 billion years old, which means ZF-UDS-7329 formed when the universe was in its infancy, just about 800 million years old.