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.
Determining if Mars ever supported microbial life. Mission to Mars
The heavier the payload (rovers, habitats, or fuel), the more powerful the rocket must be to escape Earth's gravity. Earth and Mars align favorably only every 26 months
Mapping the surface minerals and understanding the planet's internal structure. known as "opposition
Testing technologies for landing large payloads and surviving the harsh environment. 2. Launch Logistics
Using current chemical propulsion, the one-way journey typically takes 7 to 9 months . 3. The Martian Environment Challenges
Before any rocket launches, mission planners must define clear goals. Common objectives for Mars Exploration include: