Martian Mounds.

Further evidence comes from infrared images of the Martian mounds, which show that they cool down more quickly at night than rock should, suggesting they are made of a fine-grained sediment such as mud.
With this new-found information, I am happy to introduce the "Don't worry about earth" package.
It includes a step-by-step introductory tape explicative of how to reach Mars when the time comes.