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NASA's Curious Universe

Why Webb's Earliest Galaxies Are Blowing Scientists' Minds

NASA's Curious Universe

Katie Konans

Science

4.51K Ratings

🗓️ 29 July 2025

⏱️ 28 minutes

🧾️ Download transcript

Summary

With the James Webb Space Telescope, we are seeing the early universe like never before. Webb produces beautiful images and detailed scientific data that leave astronomers in awe. In this episode, Mic Bagley, a NASA scientist on the Webb team, guides us through new discoveries made possible by Webb. Mic tells the story of a remarkable galaxy discovered in the early days of Webb’s science mission and explains why Webb is teaching us “everything” about how galaxies form and evolve.

Transcript

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0:00.0

You're listening to NASA's Curious Universe. I'm your host, Jacob Pinter.

0:07.0

The James Webb Space Telescope is giving us revolutionary new information about the universe.

0:14.0

From the earliest galaxies we've ever been able to detect, to the birth and evolution of stars,

0:20.0

even to planets in our own backyard.

0:23.6

In this episode and the next several episodes of Curious Universe, we're diving into some of these

0:28.6

new discoveries. Today, we're looking back to baby pictures of the universe.

0:34.6

To begin this story, let's take a very short trip in our time machine.

0:41.3

Now we've put some miles on the old Curious Universe time machine.

0:44.3

We've taken it back billions of years all the way to the Big Bang and the beginning of everything.

0:50.3

Well, not this time.

0:52.3

We're heading back just three short years.

0:55.0

This is the day we get the first science images back from the James Webb Space Telescope,

1:00.0

and you've got a front row seat to the cosmos.

1:04.0

It's July 2022.

1:08.0

After 25 years of development, construction, testing, and finally launch, the James Webb

1:15.4

Space Telescope is gazing out at the universe, and NASA scientists are revealing its images

1:22.2

for the very first time.

1:23.6

And so now we're going to, let's do it.

1:26.6

Okay, we've got the whole world watching. Are you ready to put the first image up? Oh, let's do it. Okay, we've got the whole world watching.

1:28.3

Are you ready to put the first image up?

1:30.3

Oh, let's do it, let's do it.

1:31.3

Here we go.

...

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