The Search For Planet X

Since 2016, astronomers have been searching for a distant planet to explain the unique orbits of observable objects in the solar system. Do you have what it takes to find Planet X?

Features:

• Players take on the role of astronomers, participating in this real scientific investigation.
• Use the free companion app to survey for objects and take other actions.
• Use the app results and the logic rules to find objects, publish theories, and deduce where Planet X must be!