terraforming venus vs mars

October 12th, 2020 by

The problems with the planet Venus are absolutely fundamental, and the thick hot atmosphere is only one of the absolute show-stoppers, with the stupidly slow rotational period of Venus being another. Why is it that we focus so much on Mars? AGW is real. The reason Mars gets more attention than Venus is because we could walk on Mars. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. A spacecraft that can launch from LEO and land on Mars can easily have the propulsion capabilities needed to launch back to Earth for another mission, if it can refuel on the surface. The surface of Venus seems designed to eat technology. Outer planets and moons are much more promising in that regard, be it for terraforming or simply long-term colonization with artificial indoor environments.

There, the temperature and air pressure are about halved, perhaps managable. We and our partners will store and/or access information on your device through the use of cookies and similar technologies, to display personalised ads and content, for ad and content measurement, audience insights and product development.

Even life on Venus won't change that, as there is only so much one can discover in that regard. How to deal with animosity between different "factions" in a certain field? With Mars we can reuse what we learned from the Moon. The Venera 10 lander operated for at least 65 minutes and took pictures with one of two cameras; the other lens cap did not release. Why is Mars getting so much attention vs Venus, which to me seems like a much more attractive option, in regards to habitability. What cooling improvements did the Venera missions make? Thanks for contributing an answer to Space Exploration Stack Exchange! A low-pressure breathable oxygen atmosphere could be built using oxygen sourced from rocks, with a byproduct being enormous quantities of metals and silicon. I'd my understanding incorrect? And because Elon Musk is dead set on becoming its first settler. Terraforming Mars: Venus Next, the second expansion for the Terraforming Mars base game, has players building flying cities and making the atmosphere more hospitable on the deadly planet Venus. Small payloads can get some use from parachutes. Venus limits you to orbital habs, or, optimistically, a windblown aerostat-confined hellscape suspended perilously above a crushingly dense lead-melting soup of sulfuric acid. The Venera 11 lander operated for at least 95 minutes but neither cameras' lens caps released. I agree with some of the comments, terraforming should not be considered a serious target at this early stage of solar system colonization. Venus will probably have some mining colonies at some point as well as research stations, but return of investment will certainly be a factor here.

Since no lander has ventured on to Venus since the 1980s, the Venera program's images of the surface stand as the best close-up record of the planet today." The tech required to build a payload that could use machines that mine asteroids and build more machines to do the work, eventually building giant Solar shades for Venus or Mirrors for Mars, ect., All without a space based human workforce and nothing more than an initial cost, is not unfeasible. Mars may have enough trapped volatiles to allow walking around on the surface in an oxygen mask, just by warming the planet up.

To put this in context, the pressure on the surface of Venus is equivalent to that a half mile beneath the surface of the ocean. MathJax reference. If you create cloud cities in Venus' upper atmosphere (like planned with HAVOC) you of course can walk on them. Space Exploration Stack Exchange is a question and answer site for spacecraft operators, scientists, engineers, and enthusiasts. Could H₂S₂O₈ (peroxydisulfuric acid), made in the clouds of Venus, be used for making a propellant? How to explain to AD&D player that items that increase Armor Class in DnD5e are overpowered? Could we see the surface of Venus after the explosion of a H-bomb in its atmosphere? The lower pressure means it is harder to get oxygen, but with supplemental oxygen this is avoided.
We should focus on Mars because it's less hostile and opens the road for the Asteroid Belt. Asking more questions is how I push my understanding.

Even aliens would take notice. pressure is 93kN (3000 feet underwater. The reason we are more likely to to Mars first is because the long term habitation of it is more feasible, we won't be mining Venus for raw materials so any habitation of it would be for purely scientific research purposes. Terraforming is not necessary for colonization, but: But I have been looking at both and I too agree that Venus is more terraformable than Mars. What about staying in the upper atmosphere instead of landing?

"easy" is a big overstatement. But I don't think Venus or Mars will be seriously considered as permanent habitats for everday life (like on Earth today). Hydrogen is much more buoyant there than on Mars and can be used to float a craft 90 miles above the surface where atmosphere pressure is equal to Earth and it's only 120-140 degrees F.

Your ability to sustain a colony without any mineral resources from the surface will be limited, not to mention the complication of deploying giant balloons during descent for every incoming transport. I understand the technology isn't yet available and timelines involved are extreme; but the planet with an actual atmosphere seems easier to "fix.". Not sure if this is allowed but Convince Me.

Consider that all of humanities industrial impact on Earth has resulted in increasing CO2 levels a few hundred parts per million (~0.0002%)... to Terraform either Mars or Venus you are talking about either increasing the atmospheric pressure 166X for Mars, or decreasing it by 99% for Venus. Mars has a lot of basalt too, but it has had enough tectonic activity to give it a more Earthlike variety of igneous and metamorphic rocks, and a long enough history of liquid water to form all sorts of interesting concentrated minerals.
Even living on the surface of Venus could be much better than living on Mars if there is much less radiation higher gravity less problems with dust storms maybe there is even something like unobtainium or naquadah on Venus to mine,if there was better technology to build stuff on the surface that does not melt or get crushed and better lighting during the long nights and better ways to keep the air fresh in the buildings on the surface of Venus. The surface appears to be entirely volcanic, basalt as far as the eye can see (about 3 km under surface conditions).

Landing large amounts of mass on Mars requires heat shields and rocket propulsion.

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