Our solar system could be about to get more than 100 new planets – including our moon and other famous moons such as Saturn’s moon Titan (pictured).
It’s a proposal by a top NASA scientist, who suggests that the whole way we classify planets is wrong – and that Pluto should be returned to the fold.
We should also actually consider our moon as a planet, says Alan Stern, principle investigator of Nasa’s New Horizons mission to Pluto.
Stern and five colleagues have written a suggestion of a new way to classify planets – which would no longer require planets to orbit the sun.
If accepted by the International Astronomical Union (IAU), the move would mean that our solar system would acquire 100 new planets – including Saturn’s moon Titan and Jupiter’s moons Europa and Ganymede.
The team says, ‘In the mind of the public, the word ‘planet’ carries a significance lacking in other words used to describe planetary bodies… many members of the public assume that alleged ‘non-planets’ cease to be interesting enough to warrant scientific exploration.’