ESA’s Trace Gas Orbiter mission arrived at Mars in October 2016. After a year spent carefully adjusting its position, the spacecraft is now beginning its science operations. <br /> <br />The Trace Gas Orbiter’s instruments will be able to look through the atmosphere to identify trace gases – in particular methane – which could indicate signs of past or even present life. The orbiter will also act as a relay for rovers on the Martian surface. <br /> <br />Credit/Courtesy: ESA
