Mars is a hostile environment that dictates how equipment and habitats are designed: Mars - NASA Science
The heavier the payload (rovers, habitats, or fuel), the more powerful the rocket must be to escape Earth's gravity. Mission to Mars
Earth and Mars align favorably only every 26 months . This alignment, known as "opposition," minimizes the fuel needed for the roughly 300-million-mile trip. Mars is a hostile environment that dictates how
Determining if Mars ever supported microbial life. known as "opposition