Venus - Not Just a Pretty Face

Sci-Fi Deak Style
by John Deakins

Returning to our tour of the planets: Venus is the next from the Sun. It has near Earthlike gravity, but no moon. The good news is that it’s a unique environment. The bad news is that that environment is impossible for human life.

On a balmy day at the Venusian north pole, the temperature drops to a mere 600ºC. If you set out a block of lead, it would melt like margarine during a sunny Earth afternoon. Venus experiences a runaway greenhouse effect. Solar energy that enters its atmosphere stays there. At the Venusian equator, the temperature reaches 800ºC. The atmosphere is many times denser than Earth’s. Pressures are enormous.

The Venusian air is made of carbon dioxide and sulfuric acid. There’s limited water. Even at room temperature, it would eat your lungs or skin for a snack. Worse, it’s never still. Hurricane winds of 500 km/hr blow continuously. The constant roiling and overheating lead to lightning. A few seconds on Venus sees more lightning hits than a day on Earth. No spacecraft From Earth would last more than minutes there.

We’ll assume that you’ve jumped the enormous hurdles of months-long travel times, closed ecosystems in flight, and radiation exposure. You’ve reached Venus: Now what?

It’s a little late to Ignore It. Past writers (Burroughs, Heinlein, Brackett) could set adventures in the steamy Venusian swamps, but you can’t get away with that. In the near future, you’ll have to use Live With It. Venus’ raging atmosphere and impossible heat have to be useful for something unique. You’re the SF writer: Work on it.

Unexplained Science can work, but only in the far future. Before we can exploit Venus, interplanetary travel will have to have become common. Could we terraform Venus? Twenty kilometers above its surface, the temperature drops to 15ºC (60ºF). The atmosphere is thin. We could take an airborne algae from Earth and a bacterium able to metabolize sulfuric acid, and play games with their DNA. Given enough lab time, we could create a hybrid organism that could float high enough to begin diminishing the CO2 and breaking down the acid, with its large potential chemical energy. After a few thousand years, we could reduce the planet’s temperature, transform the atmosphere, and begin seeding the surface with more complex plants. That takes a lot of patience.

Postulate anti-gravity. Build Cloud City, floating above the hostile atmosphere. All you need is a reason to be there.

Move an asteroid from beyond Mars and give Venus a moon: no atmosphere; plenty of shielding; many problems eliminated. Perhaps it could be a way-station to Mercury.

Build a Venusian beanstalk in orbit, with its “tail” intentionally dragging in the atmosphere. (You might use another metallic asteroid for your materials.) Sulfuric acid is a valuable industrial chemical that Venusian orbital factories might use. The excess heat, transferred up the beanstalk as electricity, could be used to power those same factories.

Timing is everything. We won’t be visiting Venus anytime soon.

John Deakins, B.A., M.S.T. is a four-decade veteran of the science classroom and lives in Arkansas. As an author, John has fantasy novels in print from the Barrow series.

To read an excerpt from Barrow book one, please click HERE.