Stephen Kent

Mostly at:Fermilab
Position: Former Head, Experimental Astrophysics Group
Deputy Head, Scientific Software Infrastructure Dept.
Occasionally at: University of Chicago

Recent images

Solar Eclipse, Aug 21, 2017, near Elkville, IL

Filter: #11 welder's glass Filter: None

Totality is approximately like civil twilight (-6 degrees), except (a) the sun has "set" at every point of the compass; (b) there is this solar corona high in the sky.

Sun "setting" in East Sun "setting" in West

Current Research Projects:

Dark Energy Survey

DES Resources:

Public websites:

  • DES on Facebook
  • Dark Energy Detectives

  • Dark Energy Spectroscopic Instrument

  • Project to build a 5000 fiber spectrograph for the Mayall telescope at Kitt Peak, Arizona

  • LSST (Large Synoptic Survey Telescope)

  • Public website
  • LSST Dark Energy Science Collaboration

  • Former Research Project:

    Sloan Digital Sky Survey

    SDSS Resources:

  • Public website, a few nuggets of information here, especially under "Collaboration"
  • Project Book - provides much technical information.
  • : Get the data
  • Next generation SDSS (Note that Fermilab is not a member institution)

  • Observational Foundations of Cosmology

    Some links and essays on the early years of cosmology