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DESI Survey

@desisurvey.bsky.social

The DESI Survey will measure the properties of Dark Energy using a survey of 30+ million galaxy redshifts.

49 Posts557 Follower17 Folgt
DESI Survey@desisurvey.bsky.social · 3mo ago

🔭 This timelapse shows DESI scanning the sky from Kitt Peak. Its efficiency enabled completion of the original survey footprint (in red) ahead of schedule. Moving circle shows where DESI points. 47M+ galaxies mapped so far → the largest 3D map of the Universe ever made. Will continue until 2028.

DESI Survey@desisurvey.bsky.social · 4mo ago

🗺️ Watch the DESI survey footprint grow. Each point is a galaxy or quasar helping build the largest 3D map of the Universe ever made. DESI completed its planned survey area on April 15, 2026 — ahead of schedule. 47M+ objects mapped and counting.

DESI Survey@desisurvey.bsky.social · 11mo ago

🌟 We’re proud to share that the DESI Collaboration has been awarded the 2026 Lancelot M. Berkeley–New York Community Trust Prize by the American Astronomical Society (AAS) — read more on the AAS website aas.org/press/desi-c... 🎉

DESI Collaboration to Receive 2026 Berkeley Prize | American Astronomical Society

The Dark Energy Spectroscopic Instrument (DESI) collaboration will receive the 2026 Lancelot M. Berkeley − New York Community Trust Prize for Meritorious Work in Astronomy for its work constraining po...

aas.org

Berkeley Lab@berkeleylab.lbl.gov · last yr.

The @desisurvey.bsky.social makes a precise 3D map of galaxies to explore 11 billion years of cosmic history. Saul Perlmutter, Berkeley Lab scientist and Nobel laureate, shares what the experiment’s recent #DarkEnergy results mean for our big picture of the universe. 🎧 via @theguardian.com ⬇️

What a dark energy discovery means for the fate of the universe – podcast

Dark energy, the mysterious force powering the expansion of the universe, appears to be weakening over time, according to a major cosmological survey that has thrown the laws of modern physics into do...

theguardian.com

Héctor Gil Marín@cosmonautico.bsky.social · last yr.

🔊 New BAO analysis from the 3-year observations (DR2). Long story short, as follows. 1. DESI alone is consistent with LCDM. 👉 Boring 2. DESI and Planck have a 2.3 discrepancy in Ωm-H0rd plane. 👉Interesting.

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DESI Survey@desisurvey.bsky.social · last yr.

🚨 BIG NEWS ALERT! 🚨 We’re just 24 HOURS AWAY from a MAJOR DESI release! 🌉🔭 Tomorrow at 3 PM PT, DESI is unveiling DR1, our first official Data Release—the largest dataset of its kind, packed with information on 18.7 million galaxies, quasars, and stars! But that’s not all…

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DESI Survey@desisurvey.bsky.social · last yr.

In its quest to make precision cosmological measurements, DESI uses a process called “blinding” in its analysis methodology in order to avoid the inaccuracies that can arise from confirmation bias. This process was especially important for DESI’s latest results, which will be revealed on March 19🚀

DESI Survey@desisurvey.bsky.social · last yr.

Professor Mustapha Ishak from University of Texas at Dallas, a senior member of the DESI collaboration, explains what our survey aims to achieve: mapping the positions and velocities of millions of galaxies 🌃 With this vast dataset, DESI will trace the universe's expansion history 💪🚀