Gordon Pettengill1978
The Pioneer Venus Orbiter begins radar observations that reveal broad topographic features beneath Venus's clouds.
United States of America · Science / Astronomy. Chronological records rendered directly from the World History Database.
The Pioneer Venus Orbiter begins radar observations that reveal broad topographic features beneath Venus's clouds.
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by record, so formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.