DESI Spectroscopic Mapping Method
Schlegel explains DESI's use of 5,000 robotic fibres to measure galaxy spectra simultaneously and construct a three-dimensional map for dark-energy studies.
Historical biography archive · Updated 2026-11-03
David J. Schlegel Biography and Timeline
Follow David J. Schlegel through 3 dated historical records for United States of America.
David J. Schlegel, historical timeline
A chronological timeline drawn from matching World History Database records.
3Distinct records
1 of 1Page
2021–2025Years on this page
2021
2023
DESI Early Data Release
Schlegel helps oversee DESI as its Early Data Release makes spectra for about 1.8 million unique targets available to the scientific community.
2025
DESI Data Release One
Schlegel helps present DESI Data Release One, opening public access to a vast spectroscopic map used for precision expansion and dark-energy research.
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.