Questions tagged [venera]

Venera was a series of space probe missions the Soviet Union sent to Venus.

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Piece of debris in Venera 13 surface photos

(Source: Smithsonian National Air and Space Museum) In the Venera 13 Surface photo there is a piece of debris visible (the big thing slightly left of center). It looks like a sort cover, but maybe ...
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How were Venera's variometers able to measure extremely weak, nano-Tesla magnetic fields?

The image below is from the really interesting page Inventing The Interplanetary Probe (linked by @A.Rumlin here). Above the fluxgate magnetometer there is a pair of short tubes labeled "Variometers"....
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How was the radius of Venus measured so accurately (± 3 km) via radar in the mid 1960's, before Venera 4 and Mariner 5?

In several answers to the question When did planetary scientists realize Venus' surface pressure was almost 100x that on Earth? How did they find out? the known radius of Venus is mentioned. It was ...
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High pressure Helium tanks for the Vega balloon experiments

Is there any available (scientific) information on the properties of the high pressure Helium storage tanks, used for the Vega balloon experiments on Venus? Information on how big pressure gas they ...
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Archimedean braking for low density Venus lander + subsidiary question

Subsidiary question: Imagine a sphere 10cm in diameter in low venusian orbit. Slow it down a little in order to deorbit it. What's the density of the sphere, in order to touch the ground at 0 vertical ...
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Venera mission image data format

I often work with the programmatic manipulation of images and 3d environments in my work at an engineering firm. Out of pure curiosity I was wondering about the Venera mission data format. I read that ...
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Why did the Venera missions land so close together?

I was reading about the Venera missions to Venus, and saw this map on Wikipedia: Venera 7 is missing from the map for some reason, but it landed at 5° S, 351° E, so it would have been very close to ...
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What cooling improvements did the Venera missions make?

I've been reading about Russia's (former Soviet Union) Venera missions, and one thing about them that has impressed me is the incremental improvements the landers made in their lifespans before ...
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Has any technology been demonstrated that allows a useful payload to survive at least one month on Venus' surface?

According to the Wikipedia article on Venera-D, A lander, based on the Venera design, is also planned, capable of surviving for a long duration on the planet's surface. The surface of Venus has ...