Everything has an end, happiness, love and everything else, even the "blue" planets. This world, full of life and organism, full of foresation, water, and many types of resources. Also, full of human imagination building a future and conquering for it too, but the Earth would not last forever.
Trying to build a future has much risk like pollution which people can die from it. After many years of research and development in technology, it seemed that humans thought that resources were forever and also they thought that nothing would ever happen if they used them.
After many years, the temperature changed and the pollution in the atmosphere had increased. The use of oil caused the Green House Effect which can take into a Global Warming. All of this caused an ice Age that lasted 200 years, as scientist hypothesized. The Earth was changing and the people were worried about the years to come. They were very scared about what would happen to their generations...they knew that something bad was going to happen in the future.
A new Era would start and the old "Blue" home would be left behind. The stars would become a shelter for humanity.