Home - The Dark Energy Survey

5 days ago

Timeline PhotosCheck out this new drone video which shows the construction progress on the Vera C. Rubin Observatory. Watch at noirlab.edu/public/videos/rubin_drone_clip1/ #DiscoverTogetherCredit: Rubin Observatory/NSF/AURA ... See MoreSee Less

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The Dark Energy Survey

1 week ago

The properties of dark matter and dark energy, which make up 95% of the Universe, affect how matter is distributed on large scales. We study this distribution by mapping the positions of galaxies (red) and the effect of gravitational lensing on the shapes of more distant galaxies (yellow).The main DES Year 3 cosmology paper combines work highlighted in other #darkbites, analyzing these maps with three measurements: cosmic shear, galaxy clustering and galaxy-galaxy lensing, to give us our best understanding of the dark universe.Illustration: Jessie MuirText: Ross CawthonRead about our cosmological constraints from clustering and lensing: arxiv.org/abs/2105.13549 ... See MoreSee Less

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The Dark Energy Survey

3 weeks ago

Timeline PhotosA riot of #StarTrails dominate this striking #ImageOfTheWeek from Cerro Tololo Inter-American Observatory (CTIO). Trails such as these are created when #astrophotographers take long exposure images; they reveal the passage of the #stars across the sky as the #Earth rotates.The long exposure time of this photograph has also captured trails with a more down-to-earth origin! A nighttime staff member wearing a head torch crossed the #telescope platform while this photo was being taken. The long wavy streak threading between the telescopes was created by the regular bobbing of the passerby’s head as they walked, and the broader trail below it is the light they used to find their way.For more images of the week, visit our website : ow.ly/sL1M50FJJpRCredit:DOE/FNAL/DECam/R. Hahn/CTIO/NOIRLab/NSF/AURA[Image description: Two telescope domes are pictured under numerous star trails. Two lines of horizontal blue lights pass between the domes indicating the path walked by staff.]#NOIRLab #NSFstories #Astronomy #Space #Universe #DiscoverTogether #Chile #CTIO #Astrophotography ... See MoreSee Less

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The Dark Energy Survey

3 weeks ago

Congratulations to DEScientist Brian Nord! ... See MoreSee Less

Scientist Brian Nord receives DOE award to accelerate AI use in cosmology

news.fnal.gov

What if human analysis, combined with machine learning, could advance the study of the universe? The U.S. Department of Energy awarded Fermilab scientist Brian Nord a $2.5 million Early Career Researc...

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The Dark Energy Survey

4 weeks ago

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