I thought they established that the apparent fossils in the mars rock could have been natural formed, so they couldn't rule it as "proof" of past life on mars?
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As for like terraforming Mars, it's not just the solar winds (which like I said we could block with a hydro shield - and there is flowing liquid water still on Mars btw - or even living under ground would block solar wind bourne radiation,) but the more concerning issue with Mars habitation, is that gravity itself is a requirement for human survival. While we could maybe ignore that our bones decalcify and that our muscles atrophy (like evolve to the planets gravity), we cannot really "evolve" past the blood pooling that caused by zero g - and leads to a huge rash of serious health problems. I suppose we'd have to test just how little gravity we can survive in, but idk that we could do such tests in this day and age hahaha
To my knowledge the only method of "gravital correction" we even consider employing atm is a single person machine that basically spins the body using centrifugal force to "emulate" gravity. While this works to a point (aka everyone has a faux gravity bed/chair or w/e), I think when you're talking about living on another planet long-term (which given our current space travel speeds we are) we're far better off to pick somewhere with a "survivable" gravity level. We should go to Mars and do science stuff for sure, but for long-term human occupation I don't think it's the right choice for us at this time. I do not know that the costs and effort of creating a large gravity reproduction "thing" on the surface is a good investment.
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Also, I was talking about
Fusion Propulsion Module - Solutions
M-drive is indeed a working theory, but speed is the major hurdle we're facing. M-Drive is "perpetual motion" which is good for the pocketbook, but we need to be able to get to another solar system within someone's lifespan ultimately. M-drive might be well suited to intersystem travel along with the solar sail "engine" ideas though.
For the past decade or so NASA's been busy ******* around with green rocket fuels ~sigh~ so I'm afraid the necessary innovation for quicker space travel is not going to come from our gov...