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 shuttle 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 day.NASA,the U.S.space agency,announced that someday people may even live on Mars.But before that happens,many questions will have to be answered.