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Intergalactic space travel and hydrogen "blasting"
To travel by space ship to Andromeda (2.5 million light years) within a life time (say 50 years) you would have to travel with a much greater Lorentz factor than LHC protons, 50000 versus 7500. The LHC supposedly can melt a metric ton of copper with its 1 nano-gram proton beams. Would the space ship be significantly eroded from intergalactic hydrogen coming at it during its 50 year trip? If so, how much shielding would be needed?
To travel by space ship to Andromeda (2.5 million light years) within a life time (say 50 years) you would have to travel with a much greater Lorentz factor than LHC protons, 50000 versus 7500. The LHC supposedly can melt a metric ton of copper with its 1 nano-gram proton beams. Would the space ship be significantly eroded from intergalactic hydrogen coming at it during its 50 year trip? If so, how much shielding would be needed?