All Questions
4 questions
3votes
2answers
253views
What is the prevalence of nitrogen, phosphorus, and potassium in the asteroid belt and in comets?
As someone with a light background in controlled-environment agriculture, I'm familiar with the importance and use of N/P/K in growing useful plants. This got me thinking about how common these ...
14votes
2answers
2kviews
Would a sufficiently deep cavern on Mars provide habitable temperature and atmospheric pressure? Was Dick Tracy wrong?
Would a sufficiently deep cavern on Mars provide habitable temperature and atmospheric pressure? Dick Tracy discovered minimally dressed Moon People living comfortably outdoors on the Moon. Their Far ...
- 33k
0votes
2answers
167views
Likely ways to move asteroids
Asteroids for mining and to make habitats: what are likely ways to move them? Orion project nuclear explosions might be plausible, but would probably be expensive, use very heavy materials from Earth, ...
- 127
3votes
0answers
51views
Can it be estimated when a first settlement near the equator would become more economical than one at the midlatitudes of Mars?
Choosing the right place on Mars for a settlement would be of course an important decision because once it's there it would take much time and money to move on to another, better location. Because the ...
- 7,591
