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Vega - Solar Array

Photography Abstract posted on Jul 23, 2007
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Description


This is a close-up of the solar array for the two identical Vega probes to Venus and Halley's comet, which were launched by the Soviet Union in the early 1980s. Obviously this is mock-up, the real Vega 1 and Vega 2 are still orbiting the Sun, presumably somewhere between Earth and Venus. The solar array is from the satellite's bus. Each of the two Vega craft carried a lander and an atmospheric balloon probe which were released as the spacecraft neared Venus. The lander for Vega 1 crashed without sending surface data, the lander for Vega 2 transmitted for almost an hour from it's landing site on Aphrodite Terra. The two balloon probes, consisting of, well, a balloon, and an instrument laden gondola, lasted for about 2 days. The United States Pioneer Venus went into orbit and dropped 4 probes all of which transmitted until they crashed, transmission after landing wasn't really expected so there were no cameras. This was unfortunate since one of the 4 probes did manage to last for almost an hour on the surface. The amount of transmission times for Venus landers is small, especially when compared to the Mars missions, such as those two Mars Exploration Rovers (Spirit and Opportunity) which have each been been driving around for almost three years now, I think. But Venus is an extremely tough environment, with air pressure almost 100x that of Earth, and clouds made of sulfur dioxide. Not good picnic weather. After the flyby/drop-off at Venus, the main portion of the Vega spacecraft - the parts powered by these solar arrays - continued on to a fly-by a Halley's Comet. Where they measured stuff and took pictures...all powered by these cells. Picture taken at the Udvar-Hazy Center, the annex to the Air and Space Museum at Dulles International in Northern, VA.

Comments (1)


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CrimsonDesire

10:25PM | Mon, 23 July 2007

Looks koolness great work ^^


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