Pioneer causes Venus controversy

The Pioneer missions to Venus (Pioneer 12 and 13), launched in 1978, investigated the planet's atmosphere and created a crude radar map of the surface. The findings lead scientists to develop competing theories about the geological processes that shaped the Venusian surface. A later mission called Magellan would provide more information for geologists and lead to new theories.

Release date:

Duration:

2 minutes

This clip is from

Featured in...