Jan 4, 17 / Aqu 04, 01 19:26 UTC
Is earth-lava a good starter for a biosphere in space?
Jan 9, 17 / Aqu 09, 01 14:39 UTC
Hi Dirk. Certainly lava is a good choice, because it contain a lot of useful minerals. But lava from different volcanoes may have different composition, so one type of plants will grow better than the other one. I think that much better is to use lava in a form of some base or initial compound, in which can be added certain number of micro- and macro-elements that will make it equally good for variety of plants.
Jan 15, 17 / Aqu 15, 01 13:38 UTC
How will we get it in space though? In liquid form? Or do we make the biosphere on earth and send it up? Both would be really expensive...
Jan 15, 17 / Aqu 15, 01 14:36 UTC
Maybe we can get lava from other planets with less gravity and try that out in the space-labs first?
Like for example we take a certain quantity lava and add a dose of dry bacteria and add some water.
Just like we make compost here on earth with a box of compost-starter with dry bacteria. Then later
you could add seeds from weeds for example to start the bio.
Jan 15, 17 / Aqu 15, 01 18:38 UTC
I think before we can reach other planets with volcanic activity and can get some materials, we should build a space station with its own ecosystem. So, the best choice, lift up some materials from the Earth. And we certainly don't need the liquid lava =) All value of the lava, as material for a new ecosystem, is in its composition (so here can be problem taking lava from other planets which may have different composition).
Jan 15, 17 / Aqu 15, 01 19:15 UTC
I don't really see the point in taking lava with us though, we could take so many other usefull resources with us and then we would choose lava?
Jan 17, 17 / Aqu 17, 01 16:44 UTC
Lava can be a good soil. But if think a little bit about a problem, you can comprehend that there exist another good method of growing food. It is hydroponics - it's cheaper and better than uses of lava.
Jan 26, 17 / Aqu 26, 01 13:35 UTC
I understand that lava makes good soil, but why would we take lava to space instead of the soil itself? That would be a lot more convenient, right?