Introduction to the Solar System: Crash Course Astronomy #9 (10:13)
Key Ideas
As this video progresses, key ideas will be introduced to invoke discussion.
Key Ideas
Think about the following questions as you watch the video
- 01:59 What kind of model did Copernicus propose for the Universe? One that changed people’s views on Ptolemy’s idea of a geocentric Universe?
- 04:07 Why does Phil Plait assert that you can’t define a planet?
- 05:34 What facts or trends does Plait claim are giving us hints about how the Solar System was formed?
- 06:20 What is angular momentum and how does it work?
- 06:50 What are planetesimals and how are they formed?
- 08:08 Why did some material form planets and other material did not?