Before we get to Mars, we're going to have to practice. And develop radical leaps in technology, but also practice. A Mars mission will be utterly unlike anything attempted by humanity. We're talking ...

Cartoonist Zach Weinersmith and his wife Kelly, a parasitologist, publish 'A City on Mars', where they mock Elon Musk's technoutopianism and provide data to doubt that space colonization is just ...