4 ms·

Travelling in a ship at 0.95c, what is the danger of hitting anything on the way? Is it possible to dodge anything at all?

• db48x 5y ago
  Probably quite risky. You have little reaction time, every maneuver is 10× more expensive because your effective mass has gone up so much, and even collisions with small objects will release fantastic amounts of energy.
  • rbanffy 5y ago
    You don’t perceive the mass from inside the ship as its engines and attitude control are not relativistic in relation to you. You’ll see the object approaching at a relativistic speed, however, and it will release a very non Newtonian amount of energy if it hits.
    • db48x 5y ago
      You will definitely notice that it takes 10× more propellant and 10× more time to complete a maneuver.
      • rbanffy 5y ago
        I don't think you will - need to do the math though - but my impression is that the distorted time and space from the ship's frame of reference will account for the observed energy expended.