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Ancient star-studded galaxy found as Scots experts lead 'surprising' discovery

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dailyrecord.co.uk

Astronomers have found an ancient galaxy located 25 million light years away using the most powerful telescope to spot the system Known as GS-9209, the galaxy formed around 600 to 800 million years after the Big Bang.

Researchers say the massive and densely packed galaxy is the earliest of its kind to date.Scientists led by experts from the University of Edinburgh used the James Webb Space Telescope (JWST) to reveal the properties of GS-9209 for the first time.

Researchers say it was a "big surprise" to find a massive black hole at the centre of the galaxy."The James Webb Space Telescope has already demonstrated that galaxies were growing larger and earlier than we ever suspected during the first billion years of cosmic history," said lead researcher Dr Adam Carnall of the University of Edinburgh's School of Physics and Astronomy."This work gives us our first really detailed look at the properties of these early galaxies, charting in detail the history of GS-9209, which managed to form as many stars as our own Milky Way in just 800 million years after the Big Bang."The fact that we also see a very massive black hole in this galaxy was a big surprise, and lends a lot of weight to the idea that these black holes are what shut down star formation in early galaxies."GS-9209 was first discovered in 2004 by Edinburgh PhD student Karina Caputi, who was supervised at the time by professors Jim Dunlop and Ross McLure at the university's School of Physics and Astronomy.

Researchers have found GS-9209 has a similar number of stars to the Milky Way despite being 10 times smaller than our galaxy.According to the new study, their combined mass is around 40 billion times that of our sun, and they were formed rapidly before star

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