What is a planet? The question might seem simple but the answer is quite complex!
The definition given to this word has evolved with our knowledge of the Universe. It was not until 2006 that the International Astronomical Union gave a formal definition, causing controversy over the status of Pluto. Now that we know thousands of exoplanets, will we have to change the official definition again?
Webinar: WHAT IS A PLANET?
Tuesday February 28th 2017
You can still register to watch the recording and access the Powerpoint presentation.