Musk's partner in accelerationist chaos, Peter Thiel, says that SpaceX's Mars city was smothered after meeting both reality and his paranoia.

A new discovery of organic molecules in Martian sediment doesn't prove there was life on the red planet. But it does help build the case for it.

As the international race to explore Mars heats up, some writers are resurrecting an old hypothesis that life on Earth really started on the red planet.

Now that Opportunity's mission is complete, many wistfully lament about "bringing our robot home." There's just one problem: it's already home.

Mars One was an impossible dream. No, literally. As in not possible and could never happen. Now the company is bankrupt and its mission plans abandoned, which is really for the best.

We've dreamt of turning Mars into Earth 2.0 for decades. But is it possible? Or even worth the effort?

Could Project Stargate have been an elaborate ruse to rattle the nerves of superstitious world leaders?

A proposal for a Martian habitat wants to use the power of water for both structural support and radiation shielding.

Despite the details still left to figure out, the Interplanetary Transport System is a solid start to a real infrastructure for space exploration.

The good news is that Mars had briny oceans usually perfect for life. The bad news is that the brine contained salts used in rocket fuel...

Someone should tell Elon Musk that a nuclear bombardment of Mars into habitability won't be much of a shortcut.

Astronauts will go stir crazy and get cabin fever on interplanetary missions. And it will have to be every mission planner's job to keep them sane and entertained.

We cannot treat Mars the same way we treated the Moon.

As far as colonization ideas go, Mars One is a terrible one.

Just how realistic is Elon Musk's 80,000 person outpost on Mars given enough time and money?