Drag and drop planets and stars to make your own solar system. The physics engine will calculate how gravity between all of the asteroids, planets, and stars affect one another while they move through space.

Can you make a stable solar system? How about a stable solar system with a binary star?

Planet Families works on both phone and tablet devices.

Funding

This material is based upon work supported by the National Science Foundation under Grant Nos. ESI-0125762, DRL-1010844, and DRL-1421427. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

This material is based upon work supported by NASA under award No. NNX16AE30A. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Aeronautics and Space Administration.