Vega 1 - USSR Venus/Comet Halley Flyby - 4,000 kg was launched on December 15, 1984.
Vega 1 flew past Venus on June 11, 1985 on its way for a flyby with comet Halley. It dropped off a Venera-type lander and a balloon to investigate the Venusian middle cloud layer.
The lander's soil experiment failed. The balloon floated in the atmosphere for about 48 hours at an altitude of 54 kilometers.
The Comet Halley flyby took place on March 6, 1986.
Both Vega 1 and Vega 2 are currently in heliocentric orbits.
Friday, June 11, 2010
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