All you need to know about how hard it is to land on Mars is that rocket scientists call it "seven minutes of terror."

Mars should have some sort of live according to all the evidence we've gathered so far. But do we really know for what we're looking?

If we're going to go to Mars and do it right, we should be ready for the price tag.

A study says that more of Mars than Earth should be hospitable to life. But the data on which this conclusion is based is incomplete.

An old variant of the ancient alien theory says that Phobos isn't a moon, but an abandoned spaceship. It's a surprisingly possible, if unlikely, idea.

Mars isn't a hostile desert because its cold and has a barely-there atmosphere. It's because killer UV rays are constantly sterilizing its surface.

One day, we'll make it to Mars. But before we do that, we have to answer a lot of questions and think really hard about why we're going.

Life, uh, finds a way. But how would it finds its way on Mars?