Pluto Moons
Hubble images reveal two faint candidate satellites near Pluto, later named Nix and Hydra.
Historical biography archive · Updated 2026-11-03
Hal Weaver Biography and Timeline
Follow Hal Weaver through 6 dated historical records for United States of America.
Hal Weaver, historical timeline
A chronological timeline drawn from matching World History Database records.
6Distinct records
1 of 1Page
2005–2007Years on this page
2005
Pluto Moons
A second Hubble observing epoch shows the two candidate moons moving with Pluto, strengthening the satellite interpretation.
Pluto Moons
NASA publicly announces Hubble's discovery of two possible additional moons orbiting Pluto.
2006
Comet 73P Breakup
Weaver helps lead Hubble observations showing the detailed fragmentation of Comet 73P/Schwassmann-Wachmann 3 as it approaches the Sun.
Pluto Moons
The International Astronomical Union approves the names Nix and Hydra for Pluto's two small moons discovered with Hubble.
2007
Comet Holmes Outburst
Hubble resolves fine structures in Comet 17P/Holmes after the comet suddenly brightens by nearly a millionfold.
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.