Sean Solomon18 March 2012
MESSENGER begins its first extended mission after completing the primary year of orbital observations.
United States · Science / Astronomy. Chronological records rendered directly from the World History Database.
MESSENGER begins its first extended mission after completing the primary year of orbital observations.
This factsheet is generated from stored World History Database records matching the country, broad category, detailed category and exact Event value shown above. Duplicate display records are collapsed; database wording is otherwise preserved. Source provenance varies by record, so formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.