Airglow: Why The Night Sky Is Really Green

The video explores the night sky's airglow, a faint green light visible in low-light conditions, distinct from auroras. Airglow results from the sun's ultraviolet radiation exciting oxygen molecules, which release energy at night. This process creates a green glow, with a red layer above it, visible from space. The video also provides resources for further learning.

Describe the process that occurs when oxygen atoms release energy at night.

What colors can be seen in the nighttime sky and what causes them?