You said : Journey to Earth 's core , go to Mars . Felix Baumgartner jumped from the edge of space . `` Journey down in to the center of Earth , '' wrote Samuels . David Swift traveled to the ocean 's lowest depths . NASA official says a person can be on Mars in 20 to 30 days .
You said : Journey to Earth 's core , go to Mars . Felix Baumgartner jumped from the edge of space . David Swift traveled to the ocean 's lowest depths . NASA official says a person can be on Mars in 20 to 30 days .