Geologic Time Scale
Earth 6 billion AD
In about six billion years our sun is expected to dramatically expand and grow hotter as its helium core contracts and ignites the outer layers of hydrogen, eventually becoming a type of star called a "Red Giant."
In this image the Sun has just started its journey toward becoming a Red Giant. The Sun will continue to bloom for the next few hundred million years until it fills the sky and eventually engulfs the Earth entirely. The Earth was born of fire, and fire will be its end.
Copyright © Walter B. Myers. All rights reserved.
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