Here’s why NASA is working on a concept crewed mission to Venus

Popular Science | 10/19/2018 | Staff
jolan (Posted by) Level 3
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As surprising as it may seem, the upper atmosphere of Venus is the most Earth-like location in the solar system. Between altitudes of 50km and 60km, the pressure and temperature can be compared to regions of the Earth’s lower atmosphere. The atmospheric pressure in the Venusian atmosphere at 55km is about half that of the pressure at sea level on Earth. In fact, you would be fine without a pressure suit, as this is roughly equivalent to the air pressure you would encounter at the summit of Mount Kilimanjaro. Nor would you need to insulate yourself as the temperature here ranges between 20°C and 30°C.

The atmosphere above this altitude is also dense enough to protect astronauts from ionizing radiation from space. The closer proximity of the sun provides an even greater abundance of available solar radiation than on Earth, which can be used to generate power (approximately 1.4 times greater).

Airship - Planet - Wind - Gas - Mixture

The conceptual airship would float around the planet, being blown by the wind. It could, usefully, be filled with a breathable gas mixture such as oxygen and nitrogen, providing buoyancy. This is possible because breathable air is less dense than the Venusian atmosphere and, as a result, would be a lifting gas.

The Venusian atmosphere is comprised of 97 percent carbon dioxide, about 3 percent nitrogen and trace amounts of other...
(Excerpt) Read more at: Popular Science
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