NASA Study Proposes Airships, Cloud Cities for Venus Exploration

Updated 8.13.15, 5:34 PM EDT by Alex Klokus

At 50 kilometers above its surface, Venus offers one atmosphere of pressure and only slightly lower gravity than Earth
The amount of radiation an astronaut would be exposed to in Venus’s atmosphere would be “about the same as if you were in Canada
On Mars, unshielded astronauts would be exposed to about 0.67 millisieverts per day, which is 40 times as much as on Earth

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