Category: Auroras

Why are red auroras rare? Why do oxygen atoms (not oxygen molecules) cause auroras while molecular nitrogen cause auroras instead of atomic nitrogen?

Why are red auroras rare? Unraveling the role of oxygen and nitrogen in Earth’s auroras 1. Understanding the rarity of red auroras When we think of the aurora borealis, the vibrant hues of green and pink often come to mind. However, red auroras are relatively rare phenomena that fascinate scientists and skygazers alike. The reason