Major Ancient Merger Proposed for Andromeda23 July 2018
A merger-history study proposes that M31 experienced a dominant collision with a large galaxy about two billion years ago and links the event to its stellar halo and M32.
Historical person
Richard D'Souza Biography
Historical biography and chronological timeline for Richard D'Souza, based on 1 World History Database records associated with United States.
1 records2018–20181 events1 places
Chronological biography
2018
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.