Astronomer responsible for demoting Pluto narrows search for hypothetical 'Planet Nine'
September 09, 2021 at 06:08 AM EDT
In the continued search for the speculated ninth planet in our Solar System, Michael Brown, the CalTech astronomer who led the demotion of Pluto to a dwarf planet in 2006, has co-written a new study that claims to have narrowed the region the planet could be located.
