1. By: Megan Mauch

8. In about 1.1 billion years, the sun will be 10% brighter which will cause the greenhouse effect and dry out the water on the earth and evaporate into space with no return

9. In about 3.5 billion years from now, the Sun will be 40% brighter than it is today. It will be so hot that the oceans will boil and the water vapor lost to space. The ice caps will permanently melt, and snow will be ancient history. Eventually temperatures will get so hot that life will be unable to survive on the surface of the earth.

10. In about 6 billion years, the Sun’s core will run out of hydrogen. And the inert helium built up in the core will become unstable and collapse under its own weight. This will cause the core to heat up and get denser. The Sun will grow in size and enter the red giant phase. The expanding Sun will consume the orbits of inner planets, and probably consume the Earth as well.

11. The Sun will burn helium in its core, creating carbon and oxygen for about 100 million years until this source of fuel runs out. Finally, the of helium becomes unstable causing the Sun to pulse. It will blow off a large fraction of its atmosphere into space. Without its atmosphere, the final Sun will be the carbon-oxygen core created when it was burning helium. It will become a white dwarf similar in the size of the earth. Without fusion, the Sun will slowly cool down over trillions of years, eventually becoming the same. The Sun’s future will be cold and dark.