The red planet, Mars, has long captured the imagination of scientists, dreamers, and space enthusiasts alike. With its stark ...

What about the possibility of interplanetary biological contamination? Is the desire to terraform worth the risk of harming indigenous life forms?

Depending on whom you talk to, terraforming could take anywhere from ... The lack of gravity may cause humans on Mars to evolve differently than on Earth. Mars has one-third the gravity of Earth ...

If Mars becomes a human colony is anyone’s guess. Musk said 2016 that it would take 40 to 100 years to have a self-sustaining civilization on the planet. While Mars is quite barren, dusty, and chilly, ...