Mars is a hostile environment that dictates how equipment and habitats are designed: Mars - NASA Science
Mapping the surface minerals and understanding the planet's internal structure. Mission to Mars
Determining if Mars ever supported microbial life. Mars is a hostile environment that dictates how
Getting to Mars requires overcoming massive gravitational and orbital hurdles: Mission to Mars
Studying the history and current state of the Martian atmosphere.
The heavier the payload (rovers, habitats, or fuel), the more powerful the rocket must be to escape Earth's gravity.
Using current chemical propulsion, the one-way journey typically takes 7 to 9 months . 3. The Martian Environment Challenges