On Wednesday, one of the astronauts of the International Space Station took a picture showing the bright orange light surrounding Earth's horizon. This orange light is known as the glow of the highest atmosphere layers that is caused by radiation.
This glow arises when the particles in the atmosphere are charged with sunlight and ultraviolet radiation emitted by the sun. When atoms reach radiation, they begin to move faster, and when they collide with each other, they release energy in the form of light. The result is shimmering over the horizon of the Earth.
The photo was taken in Australia and at the head there is a part of the space station, but in the background there is orange glow, millions of stars and clouds of the Earth.
This brightness allowed scientists to look at how the Earth's atmosphere works, that is, when particles that enter the cosmos from Earth interact with the Earth's atmosphere.