Been researching an appropriate "starship", using facts and figures from the Apollo 10, an American rocket. As my novel is set just slightly into the future, the RX-8 Atlantis as mine will be known, will have to travel at the subluminal speed of more than 25,000 miles an hour. (It would have to travel 2,000 times faster to travel at FTL or superluminal speed.)
And speaking of superluminal speed or faster than light, a classical rule of the Universe that Einstein thought could not be broken, once more the experiment at the Italian Apennines to the Gran Sasso lab proved to produce speeds in excess of the speed of light, a mind boggling fact. I think Einstein will be spinning in his grave!