Threshold 2: Stars Light Up (2:49)
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
- 00:30 What was the Universe like before the first stars formed? How long was it after the Big Bang before stars started to form?
- 01:30 Why do atoms packed together tightly heat up?
- 02:16 How long do stars continue releasing energy into space?