The future of our Sun
Chapter 1
The hydrogen countdown
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Chapter 2
The red giant expansion
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Chapter 3
The planetary nebula phase
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Chapter 4
The white dwarf retirement
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YOUR GOAL
Master of The future of our Sun
Ch 2 · The red giant expansion
teacher We'll swell up giant to swallow the inner worlds, then cool down tiny to a brilliant white dwarf!
Fun Fact
Gigantic Sun: As a red giant, the Sun will expand to occupy nearly the entire sky from Earth's perspective.
Glossary
red giant (noun)
A large, luminous star in a late stage of stellar evolution with a depleted hydrogen core. In about five billion years, our Sun will balloon into this state, engulfing Mercury and Venus.
A large, luminous star in a late stage of stellar evolution with a depleted hydrogen core. In about five billion years, our Sun will balloon into this state, engulfing Mercury and Venus.