Unless you are moving at near light-speed, where a proton is already a problem, ...

marcosdumay on Oct 23, 2018 | parent | context | favorite | on: Mars likely to have enough oxygen to support life:...

Unless you are moving at near light-speed, where a proton is already a problem, debris do mostly not exist in space. If you want to reach one, you'll have to target, and even then it's hard.