"Scientists hope to one day build a colony on Mars. There are still many challenges to overcome. Colonists will need food, water, and safe shelters. The conditions on the planet can be very dangerous. Colonizing Mars covers how space explorers plan to travel to Mars and establish colonies there."--

"Earth is not well. The promise of starting life anew somewhere far, far away--no climate change, no war, no Twitter--beckons, and settling the stars finally seems within our grasp. Or is it? Critically acclaimed, bestselling authors Kelly and Zach Weinersmith set out to write the essential guide to a glorious future of space settlements, but after years of research, they aren't so sure it's a good idea. Space technologies and space business are progressing...

"This is a story about a dangerous idea--one which ignited revolutions in America, France, and Haiti; burst across Europe in the revolutions of 1848; and returned to inflame a new generation of intellectuals to lead the abolition movement--the idea that all men are created equal. In their struggle against the slaveholding oligarchy of their time, America's antislavery leaders found their way back to the rationalist, secularist, and essentially atheist...