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#euclid

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Der Quick Release 1 des #Euclid-Satelliten - die ersten 63 von am Ende 14.000 Quadratgrad des Himmels - ist da: Das Video youtube.com/watch?v=rXCBFlIpvfQ taucht in die gigantische Himmelsdurchmusterung ein, und in skyweek.wordpress.com/2025/03/ gibt es ausgewählte Bilder, Hintergründe und viele Links. Richtig ernst wird es dann Ende 2026 mit dem Data Release 1, der 1900 Quadratgrad und die ersten fundamentalen kosmologischen Schlussfolgerungen verspricht, um die es bei dem ESA-Projekt geht.

"Dark energy is the name given to the cause of the accelerating expansion of the universe. This acceleration, discovered in the late 1990s, won the Nobel Prize in Physics. It came as a great surprise: 𝗮𝘁 𝘁𝗵𝗲 𝘀𝗰𝗮𝗹𝗲 𝗼𝗳 𝘁𝗵𝗲 𝘂𝗻𝗶𝘃𝗲𝗿𝘀𝗲, 𝘁𝗵𝗲 𝗴𝗿𝗮𝘃𝗶𝘁𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗳𝗼𝗿𝗰𝗲 𝗺𝗮𝗻𝗶𝗳𝗲𝘀𝘁𝘀 𝗶𝘁𝘀𝗲𝗹𝗳 𝗮𝘀 𝗮 𝗿𝗲𝗽𝘂𝗹𝘀𝗶𝘃𝗲 𝗿𝗮𝘁𝗵𝗲𝗿 𝘁𝗵𝗮𝗻 𝗮𝗻 𝗮𝘁𝘁𝗿𝗮𝗰𝘁𝗶𝘃𝗲 𝗳𝗼𝗿𝗰𝗲!

#Euclid has exactly what it takes to respond unambiguously to [the possibility the “cosmological constant” could vary over time]."

irap.omp.eu/en/2025/03/euclid-

[Zoom on the #CosmicWeb] Have you dived into the deep fields of #Euclid revealed this Wednesday by the @ec_euclid ? Have you navigated between the thousands of #galaxies of different shapes, sizes, colors and masses? So many objects, near and far, fill our #Universe! sky.esa.int/esasky/?hide_welco

What if their spatial distribution could tell us something about two mysterious components : #DarkMatter and #DarkEnergy? This is the gamble taken by the scientists involved in the Euclid mission. To do so, they've designed some unrivalled #instruments: a camera with great depth of field and high resolution records the variety of shapes and spatial distribution of galaxies, while a #spectrometer coupled with a #photometer can determine the distances and masses of galaxies ...

Alain Blanchard, professor at the University of Toulouse and researcher at IRAP, comments on the consortium's first-ever publication of scientific data: irap.omp.eu/2025/03/le-telesco

Einblick in die Tiefen des Weltalls ✨ : Das Weltraumteleskop @ec_euclid der #ESA lieferte neue, hochauflösende Daten für die Wissenschaft. Ein Team um Francine Marleau vom Institut für Astro- und Teilchenphysik konnte darin Tausende von Zwerggalaxien identifizieren.

🔭 🌌 youtube.com/watch?v=rXCBFlIpvf

Mehr dazu: uibk.ac.at/de/newsroom/2025/ta

My mind is still a bit blown from #Euclid telescope images last night.

When I zoomed in on a tiny patch of sky — field of view: 7.1' x 3.6, which is about the size of a grain of rice held at arms length — there was so much to see.

Walls and walls of galaxies. And then more walls of galaxies behind this.

Each galaxy hosts hundreds of billions of stars and there are millions of them, all, in this tiny field of view.

We are tiny tiny creatures.