Usually the science that is developed to make these missions a reality are worth it.RSole wrote: ↑Sep 12th, 2019 9:52 pmOnly naive and uninformed people believe a manned Mars trip will happen. Scott Kelly spent a year on the ISS to see how long exposure to zero gravity affects the body. He could not even stand when he came back, and he lost a lot of bone mass. He spent that year inside the protective magnetosphere of Earth, shielded from most of the radiation out there. A Mars return trip would take several years of travel exposed to deadly radiation and no gravity. Assuming someone could survive the trip, why would we spend billions of dollars to send someone there? Mars is completely uninhabitable, even the probes we've sent there deteriorate from the harsh radiation. What would a potential Mars visitor do there? Just look around for a bit and crawl back to the ship and hope to make it back alive. To establish a habitable base there would take the resources of many nations, nations that are increasingly hard pressed to support their own citizens. Any human base would cost trillions to build. The Moon is almost infinitely closer yet we have not found the resources or will to go back there. Again, why send men to the moon? Probes can do the job much cheaper and there's not much left to learn. A moon base could happen, but Mars... no way. Dream on.
If we didn't try to get the moon in 60s we would be 30 years behind in tech.