ESA - Aurora Programme - ExoMars

Artist's impression of the ExoMars rover drilling into the Martian surface

ExoMars
ExoMars is the first Aurora Flagship mission to be assessed. Its aim is to further characterise the biological environment on Mars in preparation for robotic missions and then human exploration. Data from the mission will also provide invaluable input for broader studies of exobiology - the search for life on other planets.

  This mission calls for the development of a Mars orbiter, a descent module and a Mars rover. The Mars orbiter will have to be capable of reaching Mars and putting itself into orbit around the planet. On board will be a Mars rover within a descent module.

 After their release and landing on the surface of Mars, the orbiter will transfer itself into a more suitable orbit where it will be able to operate as a data relay satellite. Initially it will act as a data relay for the ExoMars rover but its life may be extended to serve future missions.

The Mars descent module will deliver the rover to a specific location by using an inflatable braking device or parachute system. Both systems are sufficiently robust to survive the stresses of atmospheric entry and their landing accuracy will be sufficient for this mission.

Using conventional solar arrays to generate electricity, the Rover will be able to travel a few kilometres over the rocky orange-red surface of Mars. The vehicle will be capable of operating autonomously by using onboard software and will navigate by using optical sensors. Included in its approximately 40 kg exobiology payload will be a lightweight drilling system, a sampling and handling device, and a set of scientific instruments to search for signs of past or present life.

In order to be successful ExoMars will require advanced technology in the following areas:

• rover systems
• landing systems
• an inflatable braking device
• power supply
• autonomy and navigation