Hubble Images Andromeda Double Nucleus6 July 1991
Hubble observations resolve two distinct brightness peaks in the central region of M31, revealing the unusual double structure of its nucleus.
World History Database · Biography facts · Archive · United States of America · Lauer · Tod R. Lauer
Historical person
Tod R. Lauer Biography
Historical biography and chronological timeline for Tod R. Lauer, based on 2 World History Database records associated with United States of America.
2 records1991–19932 events1 places
Chronological biography
1991
1993
Andromeda Double Nucleus Announced20 July 1993
NASA announces Hubble evidence that the core of M31 contains a double nucleus, challenging simple models of the galaxy's central stellar structure.
Titles and roles
Astronomer
Record provenance
This biography is assembled from World History Database records filtered by country and personal-name fields. Exact duplicate display records are removed. The database is an index rather than a complete narrative biography; formal research should verify entries against relevant primary or specialist sources.