‘Make Pluto a planet again’? NASA chief revives debate that divides astronomers

In 2006, Pluto was reclassified from a planet to a “dwarf planet” by the International Astronomical Union (IAU), reducing the number of recognized planets in our solar system to eight. Recently, NASA administrator Jared Isaacman expressed support for restoring Pluto’s planetary status, sparking debate among scientists. Some researchers argue that the focus on Pluto’s classification distracts from more pressing scientific issues, especially amid proposed budget cuts to NASA’s science programs. The IAU’s criteria for a planet include orbiting the Sun, being spherical due to its own gravity, and clearing its orbit of debris. The debate continues, with some advocating for a reevaluation of these criteria. QUESTION: How might the reclassification of Pluto as a planet again influence the way we understand our solar system and the universe?