Last week, the Trump administration released a presidential budget request that would cancel almost all NASA science missions in order to focus on putting humans on Mars. It's mainly a showy, ...

Buzz Aldrin has his own plan for colonizing Mars -- and while it doesn't involve the use of nuclear weapons, he's got his own ideas for stable, long-term habitation. Share on Facebook (opens in a new ...

There are substantial technical, political, and financial obstacles to starting the colonization of Mars within the next few decades. SpaceX is farther along than most toward this ambitious goal. Are ...