Early every weekday morning, 76 11th and 12th grade students from ten high schools in Harrisonburg, and Page, Rockingham and Shenandoah Counties, head to Mt. Jackson for a different kind of education. WMRA’s Margee Greenfield went along for the ride to check it out.
It’s still dark. It’s chilly. A small group of students are waiting at Turner Ashby High School at 6:45am, for the bus they take every morning to Massanutten Regional Governor’s School, in Mt. Jackson.
The twelve "candidate planets" that were possibilities for inclusion under the originally proposed definition. Note that all but the last three are trans-Neptunian objects. The smallest three (Vesta, Pallas, Hygeia) are in the asteroid belt.
In this episode of Our Island Universe, we take a look at how we define a planet... and how that definition is up for debate as we learn more about our universe.
What is a planet? We live on one, so you’d think someone would have come up a definition that works by now. Earth is a big ball of mostly rock but so is the Moon and it’s not a planet. Jupiter, Saturn, Uranus and Neptune are planets but they’re not big balls of mostly rock? Any why isn’t little old Pluto a planet any longer?!