The planet you’ve probably never heard of – CNN.com
Way out beyond Mars, but before you get to Jupiter, is a planet.
You read that right. There’s a planet between Mars and Jupiter.
You may not have heard of it, but it was discovered in 1801 — 129 years before Pluto. It originally was called a planet, then later an asteroid and now it’s called a dwarf planet.
Its name is Ceres (pronounced like series) and you’ll likely be hearing a lot more about it in the coming weeks.
But Ceres is the first of these worlds to get a visitor from Earth: NASA’s Dawn spacecraft is arriving on March 6.
“Ceres is a ‘planet’ that you’ve probably never heard of,”said Robert Mase, Dawn project manager at NASA’s Jet Propulsion Laboratory in Pasadena, California.