Physics, 07.05.2021 20:50 eloqit3338

In the year 2055, a space mission takes flight sending a ship traveling at 99.9% the speed of light. In the year 2100, the spaceship returns. Assuming a constant velocity
for the spaceflight, how much time has gone by according to the astronauts?

Would the answer be 45 (proper) years or 10006.5 years (relativistic)

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In the year 2055, a space mission takes flight sending a ship traveling at 99.9% the speed of ligh...