Mars terraforming not possible using present-day technology
It's official: we can't terraform Mars
Terraforming Mars means erasing the Red Planet's history.
No planet B': Sending humans to Mars isn't the answer to Earth's
Mars Isn't Planet B Stories From Planet Earth
Can Mars Be Terraformed? - Scientific American Blog Network
Space Colonization - Pros & Cons
Terraforming of Mars - Wikipedia
Mars Express water discovery reopens intriguing questions for