this post was submitted on 07 Nov 2025
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To be fair, terraforming those mostly involves doing what we are doing here, but on an even higher scale. The hard part is really just getting stuff from here to there.
The next hard part is the dust. Lunar and Martian dust is a huge problem to overcome, and something we don't have to deal with here. Then there's radiation, although there's things we can do to lessen that problem.
I am curious how solar winds would deplete any gasses we vent onto the surface of Mars when it doesn't have a magnetic field to stop or slow any of it. π€
My understanding is that solar winds stripping your atmo is so slow it's a problem on the scale of millions of years
Let me check a source
...
https://www.nasa.gov/news-release/nasa-mission-reveals-speed-of-solar-wind-stripping-martian-atmosphere/
Okay 21k lb during an earth day does seem like a lot
That's pretty insignificant on a planetary scale, earth loses atmo at TEN TIMES that rate π
I'm just worried it's going to be expensive to keep the atmo replenished
A civilization that can add enough gases to Mars to create close to Earth's atmosphere isn't concerned with minor maintenance like that. A small comet body's worth every hundred years (if even that often), child's play.