2022
Hubble Constant
Freedman compares alternative distance indicators to investigate the Hubble constant tension
Historical place archive
Browse historical events and people recorded at Carnegie Observatories in United States of America. The records below are rendered directly from the World History Database into this page's initial HTML.
Freedman compares alternative distance indicators to investigate the Hubble constant tension
Provenance
These entries are generated from stored World History Database records whose country and place fields match United States of America and Carnegie Observatories. Names, dates, event labels and descriptions are reviewed and normalised as the database develops. Historical place names may not match modern administrative boundaries.
This database is a research index. For formal scholarly citation, verify individual claims against appropriate primary, archival, academic or specialist sources.