For example, the International Astronomical Union considers Pluto a dwarf planet rather than a regular planet because there are other objects in its region. ---> A planet should have the gravitational pull to draw other objects in its area to it or fling them away from it.
The eight current planets all have regular elliptical orbits. ---> To be a planet, a celestial object must follow a regular course around the Sun.
NASA explains, “A planet’s gravity pulls equally from all sides. Gravity pulls from the center to the edges. . . . This makes the overall shape of a planet a . . . three-dimensional circle.” ---> Planets must be massive enough to
