University of Michigan
Star trails take shape around the 14-story Mayall Telescope dome in this long-exposure image. The Dark Energy Spectroscopic Instrument was installed inside this dome. Image credit: P. Marenfeld and NOAO/AURA/NSF
A five-year quest to map the universe and unravel the mysteries of “dark energy” is beginning officially today, and University of Michigan researchers were instrumental in the project’s development.
The Dark Energy Spectroscopic Instrument, or DESI, is an international collaboration under the aegis of the Department of Energy’s Lawrence Berkeley National Laboratory with primary funding from DOE’s Office of Science. The project aims to create a 3D map of the universe, unraveling the mysterious dark energy. To complete its quest, the instrument will capture and study the light from tens of millions of galaxies and other distant objects in the universe.
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Professor Carlos Frenk, Ogden Professor of Fundamental Physics at Durham University’s Institute for Computational Cosmology A CUTTING-edge new telescope instrument designed and built by an international team including Durham University has been officially launched. The Dark Energy Spectroscopic Instrument (DESI) aims to create the most extensive 3D map of the universe to date and reveal the nature of the mysterious dark energy that scientists believe is driving its expansion. DESI will capture and study the light from about 30 million galaxies and other distant objects in the universe. Scientists say this will help them construct a 3D map of the universe with unprecedented detail.
Date Time
Successful Start of Dark Energy Spectroscopic Instrument Follows Record-Setting Trial Run
The disk of the Andromeda Galaxy (M31), which spans more than 3 degrees, is targeted by a single DESI pointing, represented by the large, pale green, circular overlay. The smaller circles within this overlay represent the regions accessible to each of the 5000 DESI robotic fiber positioners. In this sample, the 5000 spectra that were simultaneously collected by DESI include not only stars within the Andromeda Galaxy, but also distant galaxies and quasars. The example DESI spectrum that overlays this image is of a distant quasar (QSO) 11 billion years old. (Credit: DESI collaboration and DESI Legacy Imaging Surveys)
To Map the Universe, Astrophysicists Launch Largest Sky Survey Yet
KPNO/NOIRLab/NSF/AURA/P. Marenfeld
The Dark Energy Spectroscopic Instrument (DESI) is installed on the Nicholas U. Mayall 4-meter Telescope on Kitt Peak National Observatory near Tucson, AZ.
Newswise Cambridge, MA In 1983, astrophysicists at the Center for Astrophysics | Harvard & Smithsonian(CfA) released a cosmic map using 2,400 galaxies. Now, CfA scientists are aiming to map 30 million.
In the largest quest yet to map the universe, an international team of researchers is using DESI, or the Dark Energy Spectroscopic Instrument, to survey the skies. Observations officially began today, May 17, at Kitt Peak National Observatory near Tucson, Arizona; the mission will last five years with the goal of mapping 30 million galaxies.