Forum discussion tagged with acceleration.
  1. JLivingstonSG

    Question Solar sail acceleration

    Hi. What if we build hundreds of large solar reflectors that can then focus sunlight on a solar sail space craft. How many square miles of sun reflectors would be needed to accelerate a spacecraft at 1 g, on lets say 100 tons to 90% of the speed of light in lets say 3 years ? Regards from...