Aurora whistle, crackle in fashion

An outfit in aurora inspired colors and background information about the aurora


Planets with green aurora have oxygen

Last week, I talked about the spaceport Poker Flat, Alaska that launches rockets for research on the aurora. In the Earth’s atmosphere, an electrically charged layer exists between 80 km and 400 km height. Here, molecules of nitrogen and oxygen, and oxygen atoms absorb X-rays and ultraviolet radiation coming from the Sun. In this process, [...]