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Earthworms can reproduce in Mars soil simulant

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11–20 of 81 posts

Re: Earthworms can reproduce in Mars soil simulant

#11
post #2

So it might work! Can we boostrap a real, nutrient-rich regolith and ecosystem from scratch? That would be some amazing terraforming - and some major value for mankind. And here I thought The Martian's most unrealistic part was growing the potatoes.

The most unrealistic part was the dust storm in the beginning. Not enough air pressure on Mars for wind to do much.

Re: Earthworms can reproduce in Mars soil simulant

#12
post #7

Earlier quoted context omitted.

Inflatable, radiation shielding, light emitting? How. Edit: Plants and non-human animals wouldn’t appreciate Martian rads either.

They don't really need to be radiation shielding or light emitting. People don't need to live there, just plants and animals. And insolation on Mars is sufficient for light.

Excessive radiation can also kill plants and animals

Re: Earthworms can reproduce in Mars soil simulant

#13

Earlier quoted context omitted.

They don't really need to be radiation shielding or light emitting. People don't need to live there, just plants and animals. And insolation on Mars is sufficient for light.

Excessive radiation can also kill plants and animals

Even before it kills them, it definitely ruins their reproductive capacity, which is going to be critical offworld.

Re: Earthworms can reproduce in Mars soil simulant

#14
post #2

So it might work! Can we boostrap a real, nutrient-rich regolith and ecosystem from scratch? That would be some amazing terraforming - and some major value for mankind. And here I thought The Martian's most unrealistic part was growing the potatoes.

The most unrealistic part was the dust storm in the beginning. Not enough air pressure on Mars for wind to do much.

Somebody did the math: https://space.stackexchange.com/questions/9301/could-you-fee...

Re: Earthworms can reproduce in Mars soil simulant

#15
post #7

Earlier quoted context omitted.

You could make pressurized greenhouses on mars to simulate earth conditions.

Inflatable, radiation shielding, light emitting? How. Edit: Plants and non-human animals wouldn’t appreciate Martian rads either.

Underground, LEDs, hydroponics?

Re: Earthworms can reproduce in Mars soil simulant

#16
post #15
post #7

Earlier quoted context omitted.

Inflatable, radiation shielding, light emitting? How. Edit: Plants and non-human animals wouldn’t appreciate Martian rads either.

Underground, LEDs, hydroponics?

Sure, but now you’re spending the Dv to get all of that to Mars.

Re: Earthworms can reproduce in Mars soil simulant

#19

Earlier quoted context omitted.

They don't really need to be radiation shielding or light emitting. People don't need to live there, just plants and animals. And insolation on Mars is sufficient for light.

Excessive radiation can also kill plants and animals

Is the radiation on Mars excessive? Quick googling suggests 10-20 rem per year, or about half that of the ISS. As far as I know plants do grow on the ISS.

Re: Earthworms can reproduce in Mars soil simulant

#20

If we are able to conclusively determine that Mars is no longer host to life, should we try to seed the planet with carbon dioxide & methane producing organisms in order to create an atmosphere?

That wouldn't do much good unless we can re-establish the magnetosphere.
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