Red+Giant

A __//**Red giant**//__ is a bright star that has a low surface temperature and a diameter as large as the sun. The red giant star has a low surface temperarture because it's outer atmosphere is inflated and weak. The apperance of the red giant is yellow-orange to red. Red giants have **radii of ten to the hundred times** larger than the sun which **consumed the supply of hydrogen** in a shell outside of it's core. Within **5 billion years** the sun will become a red giant star. Here is a link of what a Red Giant is: http://www.youtube.com/watch?v=8TAEmd4PZOk

It would be impossible for life to exist on a red giant simply because the amount of heat thats is given off by then star.

**Here is a image of a "Red Giant"**