The Universe - The Sun

The Sun is by far the biggest object in the Solar System.



The Sun makes energy by a process called nuclear fusion.

Hydrogen atoms in the centre are under great pressure and temperature.



When they combine to make helium they release energy.


It is often claimed that the Sun is causing global climate change.

Popular posts from this blog

Climate Change - The link with mass extinctions

Climate Change - The Greenhouse Effect

Climate Change - Coal and carbon dioxide