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Bruce Murray Space Image Library

Airglow from the ISS

Airglow from the ISS
Airglow from the ISS In this image taken by an astronaut aboard the International Space Station in 2018, our planet shines with orange light. This is airglow, a phenomenon that happens in planetary atmospheres. When radiation from the Sun strikes molecules in the atmosphere it energizes them, causing them to release energy that we can see as colors — most commonly red, green or blue, and in this case orange. NASA