Comment Re:Without my money (Score 1) 74
We don't need to explore space right now, we need to repair our biosphere.
There's nothing in space that will help us do that in time to actually do it.
Some of the technologies that would enable space exploration could also help us with the goal of repairing our biosphere though. Among our issues here on Earth is our reliance on fossil fuels. Hydrocarbons for energy make little sense pretty much everywhere we might go in space, however. All that energy storage potential for hydrocarbons is completely reliant on a massive supply of free oxygen being there for the taking. That means that basically all technology used for space either needs to not burn fossil fuels, or use systems with self-contained oxidizers. So those technologies are potentially useful for Earth. Beyond that, nearly everything you might do in space is more resource constrained than Earth, so you need to find methods of re-using the same methods over and over. Reclaiming wastewater and turning into fresh water again, recycling, scrubbing and replenishing atmospheric gases, etc. One interesting area is growing crops in limited space and with limited or no light. A more compact, direct way to grow food could massively reduce the area needed for farming on Earth and reduce the environmental cost. Processes to make steel and produce other metals in space, or to produce concrete in space could greatly reduce the energy waste and pollution of the versions of those methods used on Earth. Methods for local in situ manufacture of more goods would reduce the environmental cost of transporting those goods such long distances.
Basically, self-sustaining space exploration would involve the development of a whole host of technologies that would also help back on Earth. Space exploration and mitigating damage to/repairing the biosphere are not necessarily mutually incompatible goals.