00:18Our Dark Universe Detective returns with spectacular new views of the cosmos.
00:25The Euclid Space Telescope is building the largest cosmic atlas ever made.
00:31And in case you missed it, we already revealed the first page of this atlas.
00:36In this 208 gigapixel mosaic, you can zoom in endlessly.
00:43And now, the telescope has sent back three more of these huge mosaics.
00:50But before we show them, let's rewind.
00:54Why are we doing this?
00:55Euclid was designed to very precisely capture billions of galaxies,
01:00to show the hidden influence of dark matter and dark energy.
01:08These make up 95% of our cosmos, but we don't know what they are.
01:21Now, with this treasure trove of information, we can explore all kinds of mysteries in the Universe.
01:28From galaxies colliding, to small stars forming.
01:34Today, we reveal Euclid's view of three new patches of sky.
01:40In these areas, Euclid will eventually make the deepest observations of its six-year mission.
01:46Capturing light emitted billions of years ago, to look back in time to when the Universe was young.
01:54In only one observation of these areas, Euclid already mapped 26 million galaxies, up to 10.5 billion light-years
02:04away.
02:10Are you ready to dive in?
02:15Let's first zoom in to Euclid's deep field north.
02:20We pass through clouds, stars and other objects in our own galaxy first.
02:26This deep field is an area very rich in Milky Way stars, as it is close to our galactic plane.
02:34The faint blue structures in the image are dim clouds in between the stars.
02:40Here, we have zoomed in 50 times, and arrive at a famous nebula, the Cat's Eye, 3,000 light-years
02:48away.
02:50A dying star is shedding its gassy outer layers in this planetary nebula.
03:09In this deep field, we also see many other galaxies, like this barred galaxy, almost 400 million light-years away.
03:20Because Euclid is so sensitive and stable, it can make out the shapes of hundreds of thousands of galaxies in
03:27one view.
03:30Most of the tiny dots that you see are far away galaxies.
03:39Let's explore Euclid's excellent view of galaxies in one of the other fields revealed today.
03:50We now zoom in to Euclid's deep field south.
03:55While going deeper, we first fly by a nearby elliptical galaxy, 55 million light-years away.
04:04We can see many, many galaxies in this field, and they all have different colours,
04:09which shows us that they have different ages and distances.
04:29We now arrive at this spectacular wide view of two clusters of galaxies.
04:34The clusters are huge, and each contain thousands of galaxies.
04:39The one we are zooming into now is billions of light-years away.
04:44We can see the light between the galaxies, light made of stars ripped off from the galaxies,
04:50now wandering in intergalactic space.
04:55This field has not been observed yet by other deep sky surveys,
04:59so many of these galaxies are yet to be explored.
05:04We can clearly see an object here, with arcs of light around it.
05:08This is a large and massive galaxy bending the light from an object far away behind it.
05:13An effect called gravitational lensing.
05:24This is just the beginning.
05:27Because Euclid can make these enormously detailed maps,
05:30we slowly start to see how huge clusters of galaxies are connected to one another,
05:35along strands of gas and invisible dark matter.
05:39This is the cosmic web.
05:53Until now, Euclid has observed about 14% of the total area of its six year survey.
06:01Over the next years, it will cover one third of the sky outside of the Milky Way.
06:09Just imagine what's still to come,
06:11and the secrets that Euclid will unveil about our dark universe.
06:17And the Damn saying no, but the commentary is still as the iconic
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06:29Transcription by CastingWords
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