What will happen to the Planet Earth 100 Million Years In The Future? We tend to worry about things beyond our control like climate change that can have an impact over periods of time comparable to an average human lifetime.
For the Earth, however, the biggest changes generally happen over hundreds of millions or billions of years later. Supercontinents come and go, mass extinctions wipe out almost all life, and changes in the surrounding Solar System have an impact.
It is ultimately the Sun that will decide Earth’s fate. Billions of years from now, as our aging star begins to runs out of hydrogen fuel, it will change into a red giant and expand out into the inner Solar System as far out as the Earth’s orbit. And the World as we know it will be unrecognizable. Nature will re sharp the earth, until the sun finally destroy the earths surface once and for all.