Vega 2 - USSR Venus/Comet Halley Probe - 4,000 kg was launched on December 21, 1984.
Vega 2 flew past Venus on June 15, 1985 on its way for a flyby with comet Halley.
Like its sister probe Vega 1, t dropped off a Venera-type lander and a balloon to investigate the Venusian middle cloud layer.
The lander's soil experiment sampled anorthosite-troctolite which is found in the lunar highlands but is rare on Earth.
The balloon floated in the atmosphere for about 48 hours at an altitude of 54 kilometers.
Between Vega 1 and 2, downward gusts of 1 meter/second were encountered and wind velocities of up to 240 kilometers/hour. The Comet Halley flyby took place on March 9, 1986.
Like Vega 1, Vega 2 probe is now in a solar orbit.
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