Imagine a world where Pluto is back on the planet list. That's exactly what Nasa Administrator Jared Isaacman wants. He made it clear during a US Senate hearing that he thinks Pluto should be a full-fledged planet again.

Pluto's status as a dwarf planet has been a topic of debate for nearly two decades. In 2006, the International Astronomical Union (IAU) redefined what makes a planet. Pluto doesn't meet one of the key criteria: clearing its orbit of other debris. That's why it was bumped down from its planetary perch.

But Isaacman isn't alone in his views. Some scientists argue that Pluto's geology and atmosphere make it a planet worth considering. The New Horizons spacecraft, which flew past Pluto in 2015, provided stunning images of its surface and moons. The mission's lead, Alan Stern, has been a vocal advocate for Pluto's planetary status.

So, why does Pluto's classification matter? The debate goes beyond just a label; it's about how we define a planet. Isaacman and his supporters want to broaden the definition to include Pluto and other celestial bodies like it. This is a conversation that's been ongoing for years, with no clear resolution in sight.

Pluto's fascinating history dates back to 1930, when American astronomer Clyde Tombaugh discovered it at the Lowell Observatory in Arizona. The name 'Pluto' was suggested by an 11-year-old girl from England, inspired by the Roman god of the underworld. Pluto's story is full of mystery and intrigue, and its status as a planet is just one chapter in that story.