The ExoMars rover and Pasteur payload Phase A study: an approach to experimental astrobiology

TLDR

The Aurora programme is ESA’s planetary exploration initiative, with ExoMars as its first robotic rover mission to Mars, a program that poses significant programmatic and technological challenges and builds on the legacy of Spirit and Opportunity. ExoMars represents a new experimental astrobiology approach by deploying the Pasteur payload of instruments on a rover to search for evidence of extant or extinct life on Mars. The Phase A study designed a 240‑kg ExoMars rover carrying a 40‑kg Pasteur payload, outlining its robotic technology, instrument complement, and key design decisions.

Abstract

The Aurora programme is the European Space Agency programme of planetary exploration focused primarily on Mars. Although the long-term goals of Aurora are uncertain, the early phases of the Aurora programme are based on a number of robotic explorer missions – the first of these is the ExoMars rover mission currently scheduled for launch in 2013 (originally 2011). The ExoMars rover – developed during a Phase A study – is a 240 kg Mars rover supporting a 40 kg payload (called Pasteur) of scientific instruments specifically designed for astrobiological prospecting to search for evidence of extant or extinct life. In other words, ExoMars represents a new approach to experimental astrobiology in which scientific instruments are robotically deployed at extraterrestrial environments of astrobiological interest. Presented is an outline of the design of the rover, its robotic technology, its instrument complement and aspects of the design decisions made. ExoMars represents a highly challenging mission, both programmatically and technologially. Some comparisons are made with the highly successful Mars Exploration Rovers, Spirit and Opportunity.