NGC 4261 Black Hole Disk
Hubble reveals a disk of material in the core of NGC 4261 that appears to feed a massive central black hole.
Historical biography archive · Updated 2026-11-03
Holland Ford Biography and Timeline
Follow Holland Ford through 2 dated historical records for United States of America.
Holland Ford, historical timeline
A chronological timeline drawn from matching World History Database records.
2Distinct records
1 of 1Page
1992–1994Years on this page
1992
1994
M87 Massive Black Hole
Leads Hubble observations of rapidly orbiting gas in M87, providing strong evidence for a massive black hole at the galaxy's centre.
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.