Recent Petition

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Petition for IMMEDIATE REVERSAL of decision to demote Pluto to “Dwarf Planet” by the International Astronomical Union (IAU)


  • Ron Ekers (Past IAU President)
  • Catherine Cesarsky (IAU President, Member of the Planet Definition Committee)
  • Jan Palous (Chair of the National Organising Committee)
  • Richard Binzel (Member of the Planet Definition Committee)
  • Karel van der Hucht (incoming Secretary General)

We, the signatories herein, comprising of concerned citizens of the world strongly object to the decision and seek the IMMEDIATE REVERSAL of the Result of the IAU Resolution votes to demote Pluto from a planet to a ‘dwarf planet’. Furthermore, experts like University of Tennessee Physics Professor Bill Blass who still considers Pluto to be a planet (see article) and NASA’s head of New Horizons mission to Pluto, Dr Alan Stern ridicules the definition and states that it would have never passed ‘peer review’ (see BBC article) are some who are opposed to the IAU’s decision.

We trust that the International Astronomical Union (IAU) will take into account the feedback of the concerned citizens and experts seriously enough to consider the reversal of their decision to demote Pluto.


Concerned citizens (see the list of signatories and their own comments)

Update: We have installed anti-spam measures like Askimet and CAPTCHA but sometimes spam does get posted as signatures. Laurel Kornfeld has been a great help in weeding out spam. If you notice any spam, please contact us at

1809 Signatures (View Signatures) Sign Petition Bookmark on