For decades, people have

For decades, people have known the chemical-propulsion approach to space travel is really not going to get us that far. Chemical propulsion is essentially like the horse-and-cart approach to the exploration of the American West, instead of the steamboat or the railroad. Franklin Chang Diaz

I believe that every

I believe that every particle of dust that dances in the sunbeam does not move an atom more or less that God wishes – that every particle of spray that dashes against the steamboat has its orbit, as well as the sun in the heavens – that the chaff from the hand of the winnower … Read more