City designs for mars in future

JELLO BABIES

JELLO BABIES

0.38 g is probably not enough for humans to be healthy long term

planets may be good enough for a mining outpost but actual colonies require natural gravity

meaning rotating space stations

Mars has enough of an atmosphere right now to erode craters, but it doesn't have enough of one to mitigate radiation or impacts. Since there's not enough pressure, all your cities need domes. Even very minor micro meteorite would destroy those domes. The only realistic Mars cities are far underground.

Venus is not hot as fuck at the pressures humans would live. It's tropical. Earth on the other hand is freezing at the pressures where Venus is "hot as fuck" and we never go there without specially designed submersibles.

>let's turn Mars into a radioactive dustball
It'll be warm yeah, but now you have even more radiation to mitigate, still not enough gravity, atmosphere/pressure. So you still need to bury your cities.

>It's tropical.
It would be tropical if tropical storms were ten times worse, were constantly happening everywhere, and were made of sulfuric acid rather than water.

>since eventually we will terraform mars and other rocky planets
That's a loaded assumption. More likely we'll live in underground tubes the size and appearance of the inside of a submarine.

There have been Soviet landers as far back as the early '70s which landed on Venus, but the first couple always had technical mishaps that prevented them from transmitting photos. The first successful transmission from Venus in 1975 was also the first successful transmission from another planet ever.

I watched a video recently where a scientist (I think from NASA) said that if we colonise Mars, we should build caves into the side of canyons (of which there are many on Mars).

This is how humans used to live, inside caves on Earth.

On Mars it would offer numerous advantages:
- Protection from cosmic radiation
- Protection from wild fluctuations in temperature (since Mars gets very cold)
- Protection from meteorites I guess

The Valles Marineris is a huge canyon on Mars which covers a massive amount of its surface, and it is up to 8km deep, compared to the Grand Canyon which is only 1.8km deep. If you build caves into the side of this canyon, you'd be well sheltered from a lot of stuff.

Also regarding Venus - the surface of Venus will of course kill you. The pressure at the surface is 90x greater than on Earth, so you'd die instantly from that. Plus of course 450 degree C temperatures, and sulphuric acid rain.

Yes I'm aware of the idea of having "floating cities" 50km above the surface, where the pressure is less, and the temperatures are much cooler. But still, surely Mars would be preferable to this - Mars provides lots of land where you can grow crops. Yes, you can apparently grow crops in Martian soil: sciencedaily.com/releases/2016/06/160627095316.htm

op here first thing that need to be invented is a planetary gravity generator,reinvention of how city's are build and a brand new field of science for terraforming planet

I always wondered if you could construct some sort of hardwired vacuum tube powered electronics for the instrumentation and leave the main computer in the orbiter. In theory it should last longer especially with some sort of power generation - turbine? Even stationary lander will be excellent source of information as it will give information about seismic and atmospheric activity during extended period of time.

The cloud aren't sulfuric acid.

I say build the city like New York. New New York can be its name

>New New York
youtube.com/watch?v=8F1cOvZ3nS8

forgot to add deeper

Any sane terraforming would best be done by some genetically-engineered form of cyanobacteria or other microbe, that eats toxic or otherwise undesirable inorganic material, and excretes oxygen, water, soil, food as its waste products. It would take a long time, of course.

Mars already has 1/3rd the gravity of Earth, which is probably enough.

Gravity is seriously the LEAST of our concerns on Mars. The most important concerns are AIR and WATER. If you can make those two things, then you'll be alright. Then the next most important thing is growing crops, which again will require those two things.

And again terraforming isn't a priority. It would be nice to terraform Mars, sure. Maybe we should nuke the poles which will melt the CO2, thus creating a thicker atmosphere which will trap heat, and raise the temperature. But then we would still have the problems of air and water.

Or we could just plant a load of trees, which will consume the carbon dioxide in the atmosphere and produce oxygen as a result?

And by the way, before you say we can't grow plants on Mars, NASA says we can.

nasa.gov/feature/can-plants-grow-with-mars-soil

>Colonizing planets at all
Rotating space habitats are objectively more viable.