M81 Cepheid Distance
Freedman leads Hubble Cepheid measurements that refine the distance to galaxy M81 and improve estimates of the universe's age.
Follow Wendy Laurel Freedman through 3 dated historical records for United States of America.
A chronological timeline drawn from matching World History Database records.
Freedman leads Hubble Cepheid measurements that refine the distance to galaxy M81 and improve estimates of the universe's age.
Refines distance ladder measurements that test the expansion history of the Big Bang universe.
Role range: 1957-
Freedman compares alternative distance indicators to investigate the Hubble constant tension
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.