The <a href="https://en.wikipedia.org/wiki/International_Astronomical_Union" id="mwAZ8" rel="mw:WikiLink" title="International Astronomical Union">International Astronomical Union</a> (IAU) <a href="https://en.wikipedia.org/wiki/IAU_definition_of_planet" id="mwAaA" rel="mw:WikiLink" title="IAU definition of planet">redefines the term "planet"</a> such that <a href="https://en.wikipedia.org/wiki/Pluto" id="mwAaE" rel="mw:WikiLink" title="Pluto">Pluto</a> is now considered a <a href="https://en.wikipedia.org/wiki/Dwarf_planet" id="mwAaI" rel="mw:WikiLink" title="Dwarf planet">dwarf planet</a>.