On 20 January 2016 researchers Konstantin Batygin and Michael E. Brown at Caltech announced they have discovered a hypothetical large planet in the far outer Solar System. The predicted planet has an estimated mass of about 10 times that of Earth and a highly elliptical orbit that takes it 15,000 Earth years to orbit the Sun.

In Star Walk 2, Planet Nine is for the first time featured in an interactive space atlas.

- High resolution surface bug fixed

- Minor bug fixes