Planet Nine

For 76 years, Pluto was called the ‘ninth planet’ in our Solar System. Thought at first to be as large as Earth, it turned out to be only two-thirds the size of our Moon! In 2006, when astronomers decided in 2006 which objects would qualify as planets, little Pluto missed out. However, there is good reason to think that there may be a real ninth planet out there, lurking way out beyond Neptune. Planet Nine reveals why we think it’s there, and how astronomers are searching for it.

The minimum age for attendance at this show is five years.