Glossary of Space Exploration Terminology

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Cosmic Year
Cosmic year
The time it takes the Sun to revolve around the center of the galaxy, approximately 225 million years.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Rocketry & Space Technology

Glossary courtesy of Robert Braeunig's
Rocketry & Space Technology website.