ExoMars Trace Gas Orbiter Discovers Water in Mars’ Valles Marineris Canyon

The ExoMars Trace Gas Orbiter - a Mars orbiter launched in 2016 - has spotted water in Mars’ canyon system called the Valles Marineris.

  • Valles Marineris is the largest canyon system in the Solar System and is about ten times longer and five times deeper than Earth’s Grand Canyon.

Key Highlights

  • Joint Mission: The Roscosmos ExoMars Trace Gas Orbiter is a joint mission of the European Space Agency and the Russian Roscosmos agency.
  • FREND: The water was spotted using the Trace Gas Orbiter’s (TGO) Fine Resolution Epithermal Neutron Detector (FREND) instrument, which helps map hydrogen on the surface of the ....
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