@Lydia,what powers the sun.

Question: @Lydia,what powers the sun.
- Keywords:
  powers,
  sun
Asked by 428brna35 to Áine, Victoria, Lydia, Ciarán on 10 Nov 2014.
- Lydia Bach answered on 10 Nov 2014:
  
  Hiya,
  
  the sun is so heavy and dense, that gravity (the force that pulls things down) compresses the gas it consists of. That increases the temperatures inside the core of the sun up to 15 million degrees, so that fusion can happen. Fusion is when atoms smash into each other giving off a lot of energy!

Question: @Lydia,what powers the sun.