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Scientists unveil largest ever map of the Universe

A map showing a collection of galaxies, created from a recent sky survey by the telescopeImage source, M. Franco/C. Casey/COSMOS-Web collaboration)
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The new map features nearly 800,000 galaxies

Since its launch on Christmas Day 2021, the James Webb telescope has captured incredible images of space and helped scientists learn more about the formation of galaxies, stars and planets over billions of years.

And, now there is another discovery to add to the list.

Scientists have used 255 hours of data from the telescope to unveil the largest map of the Universe to date.

The map features nearly 800,000 galaxies across 13.5 billion years of cosmic history.

A small portion of the new COSMOS-Web map showing many thousands of galaxies from across the Universe.Image source, M. Franco/C. Casey/COSMOS-Web collaboration)
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The ground breaking map shows galaxies, stars and giant black holes

This ground-breaking map was created by the Cosmic Evolution Survey collaboration (COSMOS) and covers a part of the sky about three times the size of the Moon.

It includes amazing images and details of nearly 800,000 galaxies across billions of years.

Because the James Webb telescope can see really faint light, it is able to spot galaxies that are very far away (which means they are billions of years old)

Included in the map are galaxies and stars that are 13.5 billion years old.

Six galaxies from the COSMOS-Web map, each with a different age.Image source, M. Franco/C. Casey/COSMOS-Web collaboration)
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From upper left to lower right: present-day universe, and 3 billion, 4 billion, 8 billion, 9 billion and 10 billion years ago.

The data for this map has existed for a while, but required expert analysis and a supercomputer to interpret it.

Over the last two years, a team of international scientists have worked to turn the data into an interactive map which anyone can use to explore.

The map will also help scientists learn and understand more about how the Universe has changed since its beginning.