Skip to main content
Dictionary
Store
Blog
World
Help
Advertise
Chat
System Status
Information Collection Notice
Trademark Concerns
reCAPTCHA Privacy
Terms of Service
reCAPTCHA Terms
Privacy Policy
Accessibility
Report a Bug
Data Request
Contact Us
Security
DMCA
© 1999–2026 Urban Dictionary ®
Mugs
Tees
Hoodies
Pro Customization
Create unique products with your own words and definitions
Preview
Personalize Your Design
Your Word
Your Definition
Noun: An absolutely fucking sweet kick-ass space simulator that not only contains the solar system, but comes with some extrasolar planets and the ability to create your own stars, solar systems, nebulae, galaxies, and practically any other space object you can think of. Ideal for world-builders, astronomy enthusiasts and utter nerds. What's more, it's freeware. Get it from www.shatters.net/celestia. The latest version is hard to find but worth downloading, as it accurately represents binary stars.
Text fits
Save
Cancel