Jan 4, 2025
Massive ‘Grand Design’ Spiral Galaxy Found Just a Billion Years After Big Bang
Posted by Shubham Ghosh Roy in category: cosmology
Back when the Universe was new, following the Big Bang some 13.8 billion years ago, galaxies took a bit of time to assemble themselves from the surrounding primordial soup.
A new discovery right at the end of the Cosmic Dawn is challenging how long we thought that assembly took. JWST has spotted a huge, ultramassive galaxy as it appeared 12.8 billion years ago, so intricately structured that it can only belong to the most spectacular category of galaxies: the grand design spiral.
The galaxy’s name is Zhúlóng, after the Torch Dragon of Chinese myth, and its discovery has been detailed in a paper uploaded to preprint server arXiv ahead of peer review and publication.