Gravity and Orbits
MakeMove the sun, the earth and the moon. Switch gravity off. See what breaks.
- Type
- Physics sandbox
- Vibe
- Curious / Scientific
- Best for
- Learning / Space nerds
- Time
- 5–15 min
- Device
- Desktop + mobile
- Sound
- Silent
- Source
- phet.colorado.edu
- Space
- Physics
- Simulation
About this site
A PhET simulation from the University of Colorado Boulder. Drag planets around, change their masses and watch how orbits respond, or turn gravity off entirely and let everything fly away.
When to open it
Give it a coffee break, about 5 to 15 minutes. It works on phones as well as computers, and it's silent, so it's safe at work or in class. Best for learning and space nerds.
Also in
- Opens right here on bored.onl.
- Last checked: 2026-10-27
- Made by the people at phet.colorado.edu. We only link to it.
- Report a problem with this site
