> > If I travelled at one percent of speed of light, same distance, i suppose 100 years would elapse for me, how much would elapse on earth? > I don't know how

> > If I travelled at one percent of speed of light, same distance, i suppose 100 years would elapse for me, how much would elapse on earth? > I don't know how to do the math, but a very, very long time would have passed on earth. Eh, at .01c, not so much: https://www.omnicalculator.com/physics/time-dilation?c=USD&v=equation:0,t:100!yrs,v:3000!kmps https://www.omnicalculator.com/physics/time-dilation?c=USD&v... (=100.005y, not even two days extra)