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terraform venus. it's much closer, has a nice .9g and maybe a viable long-term project https://en.wikipedia.org/wiki/Terraforming_of_Venus https://en.wikipedi

terraform venus. it's much closer, has a nice .9g and maybe a viable long-term project https://en.wikipedia.org/wiki/Terraforming_of_Venus https://en.wikipedia.org/wiki/Terraforming_of_Venus

austincheney 7y ago
It is theorized that Venus once had an Earth like atmosphere. Venus has virtually no magnetic field unlike Earth. Without the protection of something like the Van Allen radiation belt the Sun would have easily blown off any thin high density atmosphere and eventually cook off any surface level hydrocarbons into a thick hazy atmosphere with a super greenhouse effect. Any terraforming effort would have to take that into account and capture atmospheric sulfur.
- AdmiralGinge 7y ago
  I suppose any attempt at terraforming has to create oceans if we want an Earth-like habitat (theoretically this could be achieved by re-directing enough comets at Venus or Mars provided we can utilise that kind of energy in the future). Could perhaps a form of sulphur-fixing bacteria be developed to colonise these oceans and remove it from the atmosphere as sediment? As for the magnetic field, if the lack of convection in the core is a problem (perhaps due to the core completely solidifying) couldn't we just dump enough heat energy into it to restart the dynamo action? In the future it's not completely unrealistic to think antimatter production and storage will improve, that's certainly a way of releasing absurd amounts of energy.
jacobush 7y ago
Impractical, but Venus Cloud Cities would work maybe. 1 Earth atmosphere at 20 degrees Celcius if I recall correctly.
imjasonmiller 7y ago
The much weaker gravity and its effects on human health is something I rarely see mentioned. If one were to be born on a body with a much weaker gravity than Earth, e.g. Mars (0.38) or the Moon (0.17), wouldn’t this confine them to bodies where gravity is less than or approximately equal?
- ufmace 7y ago
  The best answer right now is that nobody has any idea what, if any, effect that would have on human health. It hasn't been tried yet, so we just don't know.

terraform venus. it's much closer, has a nice .9g and maybe a viable long-term project https://en.wikipedia.org/wiki/Terraforming_of_Venus https://en.wikipedia.org/wiki/Terraforming_of_Venus

austincheney 7y ago

It is theorized that Venus once had an Earth like atmosphere. Venus has virtually no magnetic field unlike Earth. Without the protection of something like the Van Allen radiation belt the Sun would have easily blown off any thin high density atmosphere and eventually cook off any surface level hydrocarbons into a thick hazy atmosphere with a super greenhouse effect. Any terraforming effort would have to take that into account and capture atmospheric sulfur.

AdmiralGinge 7y ago
I suppose any attempt at terraforming has to create oceans if we want an Earth-like habitat (theoretically this could be achieved by re-directing enough comets at Venus or Mars provided we can utilise that kind of energy in the future). Could perhaps a form of sulphur-fixing bacteria be developed to colonise these oceans and remove it from the atmosphere as sediment? As for the magnetic field, if the lack of convection in the core is a problem (perhaps due to the core completely solidifying) couldn't we just dump enough heat energy into it to restart the dynamo action? In the future it's not completely unrealistic to think antimatter production and storage will improve, that's certainly a way of releasing absurd amounts of energy.

jacobush 7y ago

Impractical, but Venus Cloud Cities would work maybe. 1 Earth atmosphere at 20 degrees Celcius if I recall correctly.

imjasonmiller 7y ago

The much weaker gravity and its effects on human health is something I rarely see mentioned. If one were to be born on a body with a much weaker gravity than Earth, e.g. Mars (0.38) or the Moon (0.17), wouldn’t this confine them to bodies where gravity is less than or approximately equal?

ufmace 7y ago
The best answer right now is that nobody has any idea what, if any, effect that would have on human health. It hasn't been tried yet, so we just don't know.