Deep Space & Planetary Missions: Magellan Mission
The Magellan spacecraft, named after the sixteenth-century Portuguese explorer whose expedition first circumnavigated the Earth, was launched 4 May 1989, and arrived at Venus on 10 August 1990.
Magellan collected radar images of 98 percent of the planet's surface, with resolution 10 times better than that of the earlier Soviet Venera 15 and 16 missions. Altimetry and radiometry data also measured the surface topography and electrical characteristics.
