International Astronomical Union (IAU)

  • Reclassifying Pluto

    Young Astronomers Blog, Volume 29, Number 18. Remember Pluto? Yes, Pluto. It was a planet for a long time. Then it wasn’t a planet (and many people were not happy). Pluto was discovered in 1930 and for many years was thought to be the only object in the distant reaches of the Solar System. That…

  • May 2014 FAS Meeting

    What is a Dwarf Planet, how many are there and what did happen to poor Pluto?