The probe of the European space agency ExoMars Trace Gas Orbiter detected an unusual green glow in the atmosphere of Mars. This radiation, seen on the day side of the Red Planet, is similar to the radiance visible around the Earth’s atmosphere from space.
The device discovered an emerald glow in the thin atmosphere of Mars, marking the first time that this phenomenon was discovered outside the Earth. “One of the brightest radiations observed on Earth comes from oxygen atoms with a specific wavelength of light that has never been seen around another planet. Now the same thing has been seen on Mars, ”writes lead author of the study, Jean-Claude Gerard of the University of Liege.
Glow is caused by the interaction of sunlight with atoms and molecules in the air, which generates subtle but continuous light. This radiation is difficult to see even here on Earth; Observers often need perspective, so some of the best shots of the green night glow of our planet were provided by astronauts on the International Space Station.