hparadiz

5 hours ago
I always wonder what would happen if you put a fully enclosed glass terrarium in space. How would it fair. Not big either. Grape fruit sized.
Sphere's surface grows as radius squared, but volume grows as radius cubed. Hence a small terrarium will quickly freeze, and a huge terrarium will eventually fry. There is an optimal size for a terrarium, given its orbit, that keeps its internal temperature within the habitable range.

Also it would need many more plants than animals. I would rather go with an aquarium.

Giant terrariums in space was the premise of one of the great science fiction films of the early 1970s: Silent Running

https://cult-scifi.com/silent-running-1972-movie/

Mistletoe

5 hours ago
If it was in the sun it would be incinerated and in the shade it would freeze right?
So... Now we have a way to commit an act of biological terrorism on the whole Milky Way? Just get a hundred of tons of moss spores to space and accelerate them in all direction to spread them all over Milky Way. It is somehow a very satisfying thought. Maybe I'm a born terrorist deep down, and just didn't get the chance to become one?
and yet, it dies after 1 week when I bring it in as a houseplant

HackerBarrel

16 minutes ago
[dead]
Any idea that Earth-bound life need to migrate to outside of Earth, is a stupid sales talk, good for selling fiction stories. Any research work in this direction is purely to protect the jobs, work and funding.