The official astronomical definition of a “planet” changed in 2006. When it did, the planet we all knew as Pluto lost its classification! So what is the definition of a planet? It hinges on three criteria, the last of which caught Pluto on the short end of the stick. Let’s expand on this topic as well as an interesting target in our post-sunset March sky, and some stunning photos from the surface of Jupiter!

And I’ll share more about this on Open Line Friday, but Scott Baio’s wife Renée just finished installing a “Community Library” in their neighborhood… and it started getting used immediately!

Today is
“National Read Across America” day. Renée finished her community library just in time. People are already sharing their books. Amazing! pic.twitter.com/LFqKjwyCRE

— Scott Baio (@ScottBaio) March 3, 2021

This entry was posted on March 3, 2021 at 4:42 PM. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

Posted in Astronomy Fun Stuff by Andre Bernier Comments Off on What Is A “Planet?”