Methane concentrations
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ExoMars: On the hunt for methane

The ExoMars Trace Gas Orbiter will study the Red Planet's atmosphere to understand its methane content.

Methane persists in the Martian air, albeit at very low concentration and with only the occasional spike in levels.

European Space Agency project scientist Jorge Vago told our correspondent Jonathan Amos that the satellite will hopefully help track down the sources of the gas.

  • 25 Nov 2015