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    ExoMars Trace Gas Orbiter (TGO) tagged posts

    Repurposed Technology used to Probe New Regions of Mars’ Atmosphere

    July 8, 2024, Categories  Astronomy/Space

    Using the repurposed equipment, a team including Imperial College London researchers have measured parts of the Martian atmosphere that were previously impossible to probe. This includes areas that can block radio signals if not properly accounted for—crucial for future Mars habitation missions.

    The results of the first 83 measurements, analyzed by Imperial researchers and European Space Agency (ESA) colleagues across Europe, are published today in the journal Radio Science.

    To achieve this, ExoMars’ Trace Gas Orbiter (TGO) teamed up with another ESA spacecraft orbiting the red planet: Mars Express (MEX). The two craft maintain a radio link, so that as one passes behind the planet, radio waves cut through the deeper layers of the Martian atmosphere.

    Changes in the atmospher...

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    ExoMars spots Unique Green Glow at the Red Planet

    June 17, 2020, Categories  Astronomy/Space

    Airglow in Earth's atmosphere observed from the International Space Station
    Airglow occurs in Earth’s atmospheres as sunlight interacts with atoms and molecules within the atmosphere.
    In this image, taken by astronauts aboard the ISS in 2011, a green band of oxygen glow is visible over Earth’s curve. On the surface, portions of northern Africa are visible, with evening lights shining along the Nile river and its delta.

    ESA’s ExoMars Trace Gas Orbiter has detected glowing green oxygen in Mars’ atmosphere—the first time that this emission has been seen around a planet other than Earth.

    On Earth, glowing oxygen is produced during polar auroras when energetic electrons from interplanetary space hit the upper atmosphere. This oxygen-driven emission of light gives polar auroras their beautiful and characteristic green hue.

    The aurora, however, is just one way...

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