Exercise (of ):
0:00 / 4:33
Why Pluto is No Longer a Planet
Still bummed about the loss of Pluto to the tyranny of scientific definitions? Ease your pain with a logical, detailed explanation of Pluto’s demotion.
- Recommended Recommended
- History & In Progress History
- Browse Library
- Most Popular Library
Get Personalized Recommendations
Let us help you figure out what to learn! By taking a short interview you’ll be able to specify your learning interests and goals, so we can recommend the perfect courses and lessons to try next.Start Interview
You don't have any lessons in your history.
Just find something that looks interesting and start learning!
What’s the name of the musics in this video
A very clear explanation & illustration of why Pluto is now a dwarf planet. Thank you!
Really interesting and informative, thank you!
thanks for the great information
View more comments