Welcome to Bedtime History. Hello, this is Breck.

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Close your eyes and imagine a giant telescope sitting high on a mountain under a clear, dark sky.

The air is still, and above it stretches a sky filled with more stars than you can count.

Now imagine that this telescope has just begun taking its first images earlier this week.

Scientists gather around computer screens, watching as a picture slowly appears.

It is not just a picture of a few stars, it is a vast, detailed map of the

universe, filled with galaxies, glowing clouds of gas, and distant objects no human has ever seen

before. This is the kind of image that the new Vera C-Ruban Observatory and its space telescope

will show us, and it is beginning

a new chapter in how we explore space.

The Vera-C-Rubin Observatory is designed to do something special.

Instead of looking at one small part of the sky at a time, it takes wide images of huge

areas of space again and again. Over the next several

years it will create a kind of time lapse movie of the universe. Scientists will be able

to see how stars change, how asteroids move, and how distant galaxies shift over time.

Its camera is one of the largest ever built, capable of

capturing enormous amounts of detail in a single image. The observatory is named after Vera

Rubin, a scientist who helped discover important evidence about something called dark matter.

Dark matter is a mysterious substance that we cannot see directly,

but we know it exists because of how it affects the motion of galaxies.

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