Other contributors have said "The next stage in the life of the sun is expective to be what?" is the same question as "How will the current stage of life of the Sun effect life on Earth now and in the future?" If you believe that these are not asking the same thing and should be answered differently, click here
How will the current stage of life of the Sun effect life on Earth now and in the future?
The sun is middle aged. Our star is in the middle of its life cycle, and if you use the link below, you can easily read a short post on what you can expect as the sun ages. It's worth the short jump...
Except in small ecosystems near the bottom of the ocean or deep underground where there is no sunlight and all the energy is chemically obtained the sun provides all the energy the Earth receives. It...