ExoMars tagged posts

ExoMars spots Unique Green Glow at the Red Planet

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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Mars Explorer Duo on course: ESA

An artist's impression depicts the separation of the ExoMars 2016 entry, descent and landing demonstrator module, named Schiapar

An artist’s impression depicts the separation of the ExoMars 2016 entry, descent and landing demonstrator module, named Schiaparelli, from the Trace Gas Orbiter, and heading for Mars

European-Russian spacecraft were on course for Mars Monday after crucial deep-space manoeuvres in preparation for a daring mission to find evidence of life on the Red Planet. The Trace Gas Orbiter (TGO) mothership despatched the tiny Mars lander called Schiaparelli Sunday on a 3-day trek to the Martian surface in a key phase of the joint ExoMars project. There were nervous moments for ground controllers when TGO, designed to enter Mars’ orbit to analyse its atmosphere for life, stopped sending status updates for about an hour before coming back online.

In the early hours of Monday, the TGO successfully complet...

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