She wrote the song "Planet X" 10 years ago, addressing the possibility that Pluto might be downgraded. In 1996, she read an article in USA Today with the headline "Demoting Pluto Is Just Asking ...

Though Pluto has formally been considered a dwarf planet for almost two decades, it still has many lessons left for planetary scientists — including hints about how the solar system formed.

A NASA spacecraft's epic flyby of Pluto next month now has a soundtrack. Singer-songwriter Craig Werth has written a song called "Oh Pluto" to highlight and celebrate NASA's New Horizons mission ...

Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why Pluto isn't a planet.

When did Pluto stop being a planet, and why? Pluto was always in a tough spot when it came to being a planet. Just 1,477 miles across, it's only one-fifth the diameter of Earth.

I grew up when Pluto was a planet. But, as you no doubt know, 18 years ago, on August 24, ... A few people suggested I do a song about Pluto, and I thought it was a fine idea.

The whole thing is a bit silly, writes Dave Eicher. Is Pluto a planet? It's still out there, an intriguing, distant body in our solar system.