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Tag: dark energy

Dark Energy Spectroscopic Instrument (DESI) Creates Largest 3D Map of the Cosmos

Scientific data plot. The earth is in the lower left, looking out in the directions of the constellations Virgo, Serpens and Hercules to distances beyond 5 billion light years. As this video progresses, the vantage point sweeps through 20 degrees towards the constellations Bootes and Corona Borealis. Each colored point represents a galaxy, which in turn is composed of 100 billion to 1 trillion stars. Gravity has clustered the galaxies into structures called the “cosmic web”, with dense clusters, filaments and voids.

Successful Start of Dark Energy Spectroscopic Instrument (DESI) Follows Record-Setting Trial Run

An image showing the light readings that DESI takes from the Andromeda galaxy

Missing Baryons Found in Far-Out Reaches of Galactic Halos

Photo - A new study has found that a share of particles that has gone missing is most likely located at the distant bounds of galaxy haloes. The study found some of these particles of baryonic matter located about 6 million light-years from their galactic centers. This color-rendered image shows the halo of the Andromeda galaxy, which is the Milky Way’s largest galactic neighbor. (Credit: NASA)

Building a Giant 2D Map of the Universe to Prepare for the Largest 3D Map

Screenshot - A spiral galaxy, viewed with the Sky Viewer tool. (Credit: DESI Legacy Imaging Surveys)

VIDEOS: Science Collaborations Find a Way During COVID-19 Pandemic

DESI Team Prepares for Telescope Instrument’s Restart after Unexpected Shutdown

Photo - DESI is installed within the dome of the Mayall Telescope at Kitt Peak National Observatory near Tucson, Arizona. (Credit: Marilyn Sargent/Berkeley Lab)

Seeing the Universe Through New Lenses

Images - The colorized images, identified in the study as possible gravitational lenses, in side-by-side comparisons with more recent Hubble Space Telescope images (black and white). (Credits: Hubble Space Telescope, Dark Energy Camera Legacy Survey)

Looking Up From the Mountaintop: Q&A With a Telescope Instrument’s Lead Observer

Photo - Satya Gontcho A Gontcho

DESI Opens Its 5,000 Eyes to Capture the Colors of the Cosmos

DESI first spectra

3 Sky Surveys Completed in Preparation for Dark Energy Spectroscopic Instrument

Photo - Bok and Mayall telescopes at Kitt Peak

A New Filter to Better Map the Dark Universe

Photo illustration - Just as the wine glass distorts an image of the cosmic microwave background in this photo illustration, large objects like galaxy clusters and galaxies can similar distort this light to produce lensing effects. (Credit: Emmanuel Schaan and Simone Ferraro/Berkeley Lab)

VIDEO: The Making of the Largest 3D Map of the Universe

Image - In this video, DESI project participants share their insight and excitement about the project and its potential for new and unexpected discoveries. (Credit: Marilyn Chung/Berkeley Lab, DESI Collaboration)