Galaxy Redshift
Slipher measures a large redshift for the Andromeda nebula, beginning the observational path toward an expanding universe
Historical biography archive · Updated 2026-11-03
Vesto Melvin Slipher Biography and Timeline
Follow Vesto Melvin Slipher through 4 dated historical records for United States of America.
Vesto Melvin Slipher, historical timeline
A chronological timeline drawn from matching World History Database records.
4Distinct records
1 of 1Page
1912–1934Years on this page
1912
1929
Discovery of Pluto
Lowell Observatory director Vesto Melvin Slipher assigns Clyde Tombaugh the task of searching for Planet X.
1930
Naming of Pluto
Lowell Observatory director Vesto Slipher announces Pluto as the proposed name for the newly discovered world.
1934
Methane in Neptune Atmosphere
Spectroscopic work identifies strong methane absorption in Neptune's atmosphere and helps explain the planet's visible colour.
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.