University of Regina provides funding as a member of The Conversation CA-FR. University of Regina provides funding as a member of The Conversation CA. Curious Kids is a series for children of all ages ...

WEBVTT TAKING ON THE GIANTS. HOPEFULLY THEY WIN. IT’S BEEN A LITTLE OVER A DECADE SINCE PLUTO WAS DOWNGRADED FROM A PLANET TO A DWARF PLANET. THIS MORNING, I’M JOINED BY CHILDREN’S BOOK AUTHOR STEF ...

Samantha Lawler does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

On Aug. 24, 2006, the International Astronomical Union voted to strictly define a planet, which ultimately downgraded Pluto from the ninth planet from the sun to a dwarf planet — causing controversy ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Samantha Lawler, Assistant professor, Astronomy, ...