The Birth of Stars

We don't often think about our Sun as having been born. However, all stars (our Sun included) were born from large clouds of hydrogen gas. This video, dives into how all stars are formed and provides an incredible visual of what it would take to form a star here on Earth.

Stephen hawking - the birth of stars [Theater]. Available from https://www.youtube.com/watch?v=9EnBBIx6XkM&feature=related

As you're watching the video, answer the questions below.

1. What temperature must a star reach for 'nuclear fusion' to occur?

2. What happens in 'nuclear fusion'?

3. If we could create a star the size of a soccer ball, what would happen?