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Jared Isaacman urges Senate to reinstate Pluto's planet status
NewsBytes | April 29, 2026 4:40 PM CST

International Astronomical Union definition excludes Pluto

The official definition from the International Astronomical Union says a planet has to orbit the Sun, be round, and clear its neighborhood of other stuff: something Pluto doesn't do because it hangs out with lots of objects in the Kuiper Belt.
Some Pluto advocates think this rule is too strict.
Even after NASA's New Horizons mission sent back amazing photos of Pluto in 2015, its "dwarf planet" label stuck.
With Isaacman speaking up, there could finally be some new debate about bringing Pluto back into the planetary club.


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