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A cosmic time machine: How the James Webb Space Telescope lets us see the first galaxies in the universe
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A cosmic time machine: How the James Webb Space Telescope lets us see the first galaxies in the universe

It has been an exciting week with the release of breathtaking photos of our Universe by the James Webb Space Telescope (JWST).

Science & Tech

It has been an exciting week with the release of breathtaking photos of our universe by the James Webb Space Telescope (JWST).

This article was originally published at The Conversation. (opens in new tab) The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights.

Sara Webb (opens in new tab), Postdoctoral Research Fellow, Swinburne University of Technology.

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It has been an exciting week with the release of breathtaking photos of our universe by the James Webb Space Telescope (JWST). Images such as the one below give us a chance to see faint distant galaxies as they were more than 13 billion years ago.

It's the perfect time to step back and appreciate our first-class ticket to the depths of the universe and how these images allow us to look back in time.

These images also raise interesting points about how the expansion of the universe factors into the way we calculate distances at a cosmological scale.

https://www.space.com/how-the-james-webb-space-telescope-lets-us-see-the-first-galaxies