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> and eventually living space in space protected from radiation and, if you build sub-surface tracks, enough acceleration to live normally. Can you clarify wha

> and eventually living space in space protected from radiation and, if you build sub-surface tracks, enough acceleration to live normally. Can you clarify what you mean by that please? What protects from radiation? What are "sub-surface tracks" and the "acceleration" they provide?

sgarman 6y ago
I don't know exactly what the OP means but putting something big and sold between it and the sun is a good way to limit radiation. Maybe the moon in this case?
chaps 6y ago
The earth's magnetosphere protects from radiation.
kristianp 6y ago
They're talking about living inside an asteroid that has been moved to the lunar gateway. You can imagine a looped track dug inside, to provide simulated gravity. I don't think that's very feasible, I prefer the "Islands in space" idea from Gerard O'Neill. To provide artificial gravity. https://en.m.wikipedia.org/wiki/O%27Neill_cylinder https://en.m.wikipedia.org/wiki/O%27Neill_cylinder
- blackrock 6y ago
  That must be a giant rock that you must carve an internal loop out of. And then, how much energy would it even take to spin such a huge rock? I think you’d need a new exotic propulsion system just to rotate it. Maybe nuclear or a sustained ion propulsion.
superkuh 6y ago
Sorry I wasn't clear. Being beneath the surface provides radiation protection. Specifically by digging out tunnels beneath the surface of moderates size asteroids, putting down butyl ruber tubes, and laying tracks within. By having the cars on the track go around the curved track an artificial gravity is induced. But you can stop the space train cars, step outside, and there's no deep gravity well to make getting things to and from there so expensive. ---- I'd also like to make it clear that the Asteroid Retrieval Bus, the mission that was canceled, is the reason the lunar gateway concept exists. Having the lunar gateway but not asteroid de-spin and retrieval is putting the cart before the horse without intentions of getting a horse. https://en.wikipedia.org/wiki/Power_and_Propulsion_Element#Asteroid_Redirect_Vehicle_bus https://en.wikipedia.org/wiki/Power_and_Propulsion_Element#A... >The Asteroid Redirect Vehicle... ...mission was cancelled in early 2017 and the spacecraft's propulsion segment became the Power and Propulsion Element (PPE) for the Deep Space Gateway, now known as the Gateway.

sgarman 6y ago

I don't know exactly what the OP means but putting something big and sold between it and the sun is a good way to limit radiation. Maybe the moon in this case?

chaps 6y ago

The earth's magnetosphere protects from radiation.

kristianp 6y ago

They're talking about living inside an asteroid that has been moved to the lunar gateway. You can imagine a looped track dug inside, to provide simulated gravity. I don't think that's very feasible, I prefer the "Islands in space" idea from Gerard O'Neill. To provide artificial gravity. https://en.m.wikipedia.org/wiki/O%27Neill_cylinder https://en.m.wikipedia.org/wiki/O%27Neill_cylinder

blackrock 6y ago
That must be a giant rock that you must carve an internal loop out of. And then, how much energy would it even take to spin such a huge rock? I think you’d need a new exotic propulsion system just to rotate it. Maybe nuclear or a sustained ion propulsion.

superkuh 6y ago

Sorry I wasn't clear. Being beneath the surface provides radiation protection. Specifically by digging out tunnels beneath the surface of moderates size asteroids, putting down butyl ruber tubes, and laying tracks within. By having the cars on the track go around the curved track an artificial gravity is induced. But you can stop the space train cars, step outside, and there's no deep gravity well to make getting things to and from there so expensive. ---- I'd also like to make it clear that the Asteroid Retrieval Bus, the mission that was canceled, is the reason the lunar gateway concept exists. Having the lunar gateway but not asteroid de-spin and retrieval is putting the cart before the horse without intentions of getting a horse. https://en.wikipedia.org/wiki/Power_and_Propulsion_Element#Asteroid_Redirect_Vehicle_bus https://en.wikipedia.org/wiki/Power_and_Propulsion_Element#A... >The Asteroid Redirect Vehicle... ...mission was cancelled in early 2017 and the spacecraft's propulsion segment became the Power and Propulsion Element (PPE) for the Deep Space Gateway, now known as the Gateway.