It was December and the sky lit up like a Christmas tree. Shimmering, the vivid green, blue, and purple auroral colors that formed the tree-like apparition were caused by high atmospheric oxygen and nitrogen reacting to a burst of incoming electrons. Collisions caused the orbital electrons of atoms and molecules to jump into excited energy states and emit visible light when returning to their normal state. The featured image was captured in Djúpivogur, Iceland during the last month of 2023. Our Sun is currently in its most energetic phase of its 11-year cycle, with its high number of active regions and sunspots likely to last into next year. Of course, the Sun has been near solar maximum during this entire year, with its outbursts sometimes resulting in spectacular Earthly auroras. Image Processors: Take NASA's Astrophoto Challenge
HD image: LINK 🛸
Copyright: **
Jingyi Zhang
** 🔭
Project Website: LINK 🚀
| Name | Craft |
|---|---|
| Oleg Kononenko | ISS |
| Nikolai Chub | ISS |
| Tracy Caldwell Dyson | ISS |
| Matthew Dominick | ISS |
| Michael Barratt | ISS |
| Jeanette Epps | ISS |
| Alexander Grebenkin | ISS |
| Butch Wilmore | ISS |
| Sunita Williams | ISS |
| Li Guangsu | Tiangong |
| Li Cong | Tiangong |
| Ye Guangfu | Tiangong |
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