Astronautics Vocabulary

The Astronautics Vocabulary is a glossary of terms that pertain to the science and technology of spaceflight. This alphabetical list can be navigated by clicking on the letters A-Z displayed on this page.

Definition of polar aurora

Translation: aurore polaire

Definition: The most intense of the several lights emitted by the Earth’s upper atmosphere, seen most often along the outer realms of the Arctic and Antarctic, where it is called aurora borealis and aurora australis, respectively; excited by charged particles from space.

Other Definition: None

Synonym: None