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Historical person

James Head Biography

Historical biography and chronological timeline for James Head, based on 3 World History Database records associated with United States of America.

3 records1974–19753 events0 places

Chronological biography

1974

Caloris Basin1974
Science / Astronomy

Mariner 10 imagery reveals the immense Caloris impact basin and surrounding tectonic terrain on Mercury.

Mercury Surface1974
Science / Astronomy

Mariner 10 images reveal a heavily cratered Mercury surface with ridges, scarps and extensive impact terrain.

1975

Mercury Mapping1975
Science / Astronomy

Mariner 10 data provide detailed maps of roughly forty-five percent of Mercury's surface, leaving much of the planet unseen.

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.