International Astronomical Union

The New Horizons space probe voyage to Pluto has helped to create new interest in learning about our solar system. And it has refocused attention on the issue of Pluto’s demotion from planetary status. I hope to convince you, in this article, that this unfortunate decision should be reversed.

The New Horizons space probe voyage to Pluto has helped to create new interest in learning about our solar system. And it has refocused attention on the issue of Pluto’s demotion from planetary status. I hope to convince you, in this article, that this unfortunate decision should be reversed.