When most people think of our Solar System, they think of the 8 planets officially recognized by the International Astronomical Union (IAU). But what if I told you there are at least 40 planets, and ...

If the definition is approved by the astronomers gathered 14-25 August 2006 at the IAU General Assembly in Prague, our Solar System will include 12 planets, with more to come. Skip to main content ...

A new definition would add 102 planets to the solar system – including Pluto. The debate on whether Pluto is a planet has been reignited again this week at an international conference.

There goes the solar system. The elite society of nine lordly bodies of rock, ice and gas would grow to at least 12 and as many as 53 members under a new definition of “planet” proposed ...

Update Aug. 17: Astronomers Sharply Divided on New Planet Definition The tally of planets in our solar system would jump instantly to a dozen under a highly controversial new definition proposed ...

By this definition, the list of planets in order from the sun now reads: Mercury, Venus, Earth, Mars, Ceres, Jupiter, Saturn, Uranus, Neptune, Pluto-Charon (considered a double-planet system) and ...

Most of us grew up learning that there are nine planets in our solar system. Back in 2006 that all changed, when Pluto was demoted from being labeled a proper planet to its new classification as a ...

But this definition of the solar system is considered to be far too simple by some astronomers, such as Caltech's Mike Brown. "It's not really true," Brown told Live Science in an email.

The solar system has many more moons than the one we can see in the sky. ... depends on your definition of a moon. You may like What are dwarf planets — and how many are there?

Is Pluto a planet? It's not a question scientists ask in polite company. "It's like religion and politics," said Kirby Runyon, a planetary scientist at Johns ...

A new definition would add 102 planets to our… Share this: Click to share on Facebook (Opens in new window) Click to share on X (Opens in new window) Subscribe; Login; ...