Helsinki, May 22 -- The largest sample of galaxy groups ever detected has been presented by a team of international astronomers using data from the James Webb Space Telescope (JWST) in an area of the sky called COSMOS Web.

The study marks a major milestone in extragalactic astronomy, providing unprecedented insights into the formation and evolution of galaxies and the large-scale structure of the universe.

Peering back in time to when the universe was younger than the Earth is now, the images span the period from around twelve billion years ago until one billion years ago.

The new catalogue of images, soon to be published in the journal Astronomy and Astrophysics (A&A), includes nearly 1,700 galaxy groups.

The research group's impress...