But traveling to Mars is more difficult.It is 35 million miles away! Franklin Chang Diaz,a former NASA scientist,is developing a rocket that will send a ahuttle into space at the speed of 55 kilometers per second. The trip from the Earth to Mars will be reduced from 6 to 8 months to 39 days.NASA,the U.S. space agency, announcd that someday people may even live in Mars.
But before that happens, many questions will have to be answered.