At a recent Senate hearing on NASA’s 2027 budget request, NASA’s Administrator Jared Isaacman made a comment that reopens a question many in the scientific community had considered closed: should Pluto once again be classified as a planet?
Since its discovery in 1930, Pluto held the status of the solar system’s ninth planet. That changed in 2006, when the International Astronomical Union (IAU) introduced a formal definition of what constitutes a planet.
