Tag: Universe mapping

Gaia: Rewriting the story of the Milky Way

For over a decade, ESA’s Gaia mission has mapped our galaxy with stunning precision—rewriting the story of the Milky Way. As its mission enters a new phase, we look back at its most groundbreaking discoveries.

Credit: ESA – European Space Agency

Chapters:
00:23 – Mapping the Milky Way and beyond
00:58 – Structure of the Milky Way
01:40 – Galactic family tree
02:27 – Mapping star-forming regions
03:00 – Ancient star streams
03:19 – Cosmic encounters
04:07 – Black holes and hidden giants

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We are Europe’s gateway to space. Our mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world. Check out https://www.esa.int/ to get up to speed on everything space related.

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March 30, 2025
This space telescope is mapping the Universe! 🌌 (Part 2)

On 19 March 2025, our Euclid mission released its first batch of survey data, including a preview of its deep fields. Here, hundreds of thousands of galaxies in different shapes and sizes take centre stage and show a glimpse of their large-scale organisation in the cosmic web.

📹 ESA – European Space Agency
📸 ESA /Euclid/Euclid Consortium/@NASA, image processing by J.-C. Cuillandre, E. Bertin, G. Anselmi
Euclid Deep Field South, 70x zoom: ESA/Euclid/Euclid Consortium/NASA, image processing by J.-C. Cuillandre, E. Bertin, G. Anselmi

#ESA #Euclid #Space

March 29, 2025
This space telescope is mapping the Universe! 🌌

On 19 March 2025, our Euclid mission released its first batch of survey data, revealing an astonishing view of the cosmic web.

With just one scan of its deep fields, Euclid has already detected 26 million galaxies, some as far as 10.5 billion light-years away! This is just a preview of what’s to come, as Euclid will continue mapping the Universe in unprecedented detail.

What’s in this first release?
– Three vast mosaics covering 63 square degrees of the sky
– A catalogue of 380 000 galaxies, classified with AI + citizen scientists
– 500 new gravitational lens candidates, almost all never seen before
– The first hints of Euclid’s full cosmic atlas, which will eventually cover one-third of the sky

This data is a huge leap forward in understanding how galaxies are distributed across the Universe and how dark matter and dark energy shape the cosmos.

Over the next six years, Euclid will revisit these deep fields 30 to 52 times, uncovering billions of galaxies and pushing the astrophysics’ boundaries.

📹 @europeanspaceagency
📸 ESA /Euclid/Euclid Consortium/@NASA, image processing by J.-C. Cuillandre, E. Bertin, G. Anselmi
Euclid Deep Field South, 70x zoom: ESA/Euclid/Euclid Consortium/NASA, image processing by J.-C. Cuillandre, E. Bertin, G. Anselmi

#ESA #Euclid #Space

March 21, 2025
Euclid’s first deep dive into the Universe

The European Space Agency’s Euclid space telescope mission has scouted out the three areas in the sky where it will eventually provide the deepest observations of its mission.

In just one week of observations, with one scan of each region so far, Euclid already spotted 26 million galaxies. The farthest of those are up to 10.5 billion light-years away.

In the coming years, Euclid will pass over these three regions tens of times, capturing many more faraway galaxies, making these fields truly ‘deep’ by the end of the nominal mission in 2030.

The first glimpse of 63 square degrees of the sky, the equivalent area of more than 300 times the full Moon, already gives an impressive preview of the scale of Euclid’s grand cosmic atlas when the mission is complete. This atlas will cover one-third of the entire sky – 14 000 square degrees – in this high-quality detail.

Explore the three deep field previews in ESASky:

– Euclid Deep Field South: https://sky.esa.int/esasky/?hide_welcome=true&hide_banner_info=true&hips=DES-DR2+ColorIRG&sci=false&layout=esasky&euclid_image=EDFS

– Euclid Deep Field Fornax: https://sky.esa.int/esasky/?target=202.469575%2047.195258333333335&hips=DSS2+color&fov=1&projection=TAN&cooframe=J2000&sci=false&lang=en&layout=esasky />
– Euclid Deep Field North: https://sky.esa.int/esasky/?target=202.469575%2047.195258333333335&hips=PanSTARRS+DR1+color+(i%2C+r%2C+g)&fov=1&projection=TAN&cooframe=J2000&sci=false&lang=en&layout=esasky />
Read more: https://www.esa.int/Science_Exploration/Space_Science/Euclid/Euclid_opens_data_treasure_trove_offers_glimpse_of_deep_fields

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Credits: ESA/Euclid/Euclid Consortium/NASA, image processing by J.-C. Cuillandre, E. Bertin, G. Anselmi, M. Walmsley, M. Huertas-Company; ESA/Gaia/DPAC; ESA/Planck Collaboration
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We are Europe’s gateway to space. Our mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world. Check out https://www.esa.int/ to get up to speed on everything space related.

Copyright information about our videos is available here: https://www.esa.int/ESA_Multimedia/Terms_and_Conditions

#ESA #Euclid #Space

March 19, 2025
This is where we are in the Milky Way… 🌌

This stunning artist’s animation of the Milky Way is based on data from ESA’s Gaia space telescope. Gaia has completely reshaped our understanding of our home galaxy—revealing unexpected details about its spiral arms, central bar, and overall structure.

We can’t take a selfie of the Milky Way, but thanks to Gaia, we’re seeing it clearer than ever! And with more data releases on the way, our view will only get sharper.

Credit: ESA/Gaia/DPAC, Stefan Payne-Wardenaar

#ESA #MilkyWay #Gaia

January 17, 2025
The best Milky Way animation, by Gaia

This is a new artist’s animation of our galaxy, the Milky Way, based on data from ESA’s Gaia space telescope.

Gaia has changed our impression of the Milky Way. Even seemingly simple ideas about the nature of our galaxy’s central bar and the spiral arms have been overturned. Gaia has shown us that it has more than two spiral arms and that they are less prominent than we previously thought. In addition, Gaia has shown that its central bar is more inclined with respect to the Sun.
No spacecraft can travel beyond our galaxy, so we can’t take a selfie, but Gaia is giving us the best insight yet of what our home galaxy looks like. Once all of Gaia’s observations collected over the past decade are made available in two upcoming data releases, we can expect an even sharper view of the Milky Way.

Click here to download the still image of the Milky Way: https://www.esa.int/Science_Exploration/Space_Science/Gaia/New_Gaia_release_reveals_rare_lenses_cluster_cores_and_unforeseen_science

Credit: ESA/Gaia/DPAC, Stefan Payne-Wardenaar

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We are Europe’s gateway to space. Our mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world. Check out https://www.esa.int/ to get up to speed on everything space related.

Copyright information about our videos is available here: https://www.esa.int/ESA_Multimedia/Terms_and_Conditions

#ESA #Gaia #MilkyWay

January 15, 2025
Euclid’s 208-Gigapixel glimpse into the Universe

Discover the first page of ESA Euclid’s great cosmic atlas and marvel at millions of stars and galaxies captured in pristine detail, in a huge 208-gigapixel mosaic. The mosaic covers an area of the Southern Sky more than 500 times the area of the full Moon as seen from Earth.

This video takes you through a rare sky dive. Starting from a vast cosmic panorama bedazzled by some 14 million galaxies, a series of ever-deeper zooms brings you to a crisp view of a swirling spiral galaxy, in a final image enlarged 600 times compared to the full mosaic.

Although the scenes are enticing, they are not taken for their beauty, but to help us advance our understanding of the cosmos. Many of the 14 million galaxies in the initial vista will be used to study the hidden influence of dark matter and dark energy on the Universe.

Unveiled as a teaser of the wide survey, the mosaic accounts for 1% of the area that Euclid will cover over six years, and was obtained by combining 260 observations collected in just two weeks.

This first chunk of Euclid’s survey was revealed on 15 October 2024 at the International Astronautical Congress in Milan, Italy, by ESA’s Director General Josef Aschbacher and Director of Science Carole Mundell.

Read more: https://www.esa.int/Science_Exploration/Space_Science/Euclid/Zoom_into_the_first_page_of_ESA_Euclid_s_great_cosmic_atlas

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Copyright: ESA/Euclid/Euclid Consortium/NASA, CEA Paris-Saclay, image processing by J.-C. Cuillandre, E. Bertin, G. Anselmi; ESA/Gaia/DPAC; ESA/Planck Collaboration
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We are Europe’s gateway to space. Our mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world. Check out https://www.esa.int/ to get up to speed on everything space related.

Copyright information about our videos is available here: https://www.esa.int/ESA_Multimedia/Terms_and_Conditions

#ESA #Euclid #Darkmatter

October 15, 2024