435:W3F(250 words)

Myths and misconceptions have clouded our understanding of Mars for centuries. Today, we understand the red planet much better. In this discussion, you will reflect on the what we have learned and what we still need to know about this intriguing world.

Choose one of the following topics to discuss:

We hope, within the next couple of decades, to send humans to Mars for exploration, and eventually colonization. What are the key obstacles and challenges we have to face to accomplish this goal?

or

Discuss terrain features on Mars — what’s unusual, surprising, and what have Mars orbiting spacecraft and rovers told us about Mars’ past?