Listen to NPR: Science
episodes free, on demand. Some of the earliest science fiction imagined voyages to Mars. We now have the space-faring technology to make reaching the Red Planet possible. It would involve massive resources and many potential dangers, but some believe the rewards would be massive. Listen to over 15,000 radio shows, podcasts and live radio stations for free on your iPhone, iPad, Android and PC. Discover the best of news, entertainment, comedy, sports and talk radio on demand with Stitcher Radio.