Chapter 1
The cosmic horizon of our sight
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Chapter 2
The shape and geometry of space
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Chapter 3
Is there an edge to everything
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Chapter 4
The expanding cosmos and cosmic speed limits
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Chapter 5
Three ultimate fates of the universe
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YOUR GOAL
Master of Is the universe infinite
Ch 5 · Three ultimate fates of the universe
artiteacher Fate of the universe
Will it freeze out cold, / will it crunch back down, / or rip right apart?
Fun Fact
Dark energy dominance: Dark energy makes up roughly 68% of the universe, while normal matter like stars and planets makes up only 5%.
Glossary
dark energy (noun)
A hypothetical form of energy that is proposed to permeate all of space and accelerate the expansion of the universe. This force, discovered in 1998, dictates whether the cosmos will collapse, freeze, or rip apart.
A hypothetical form of energy that is proposed to permeate all of space and accelerate the expansion of the universe. This force, discovered in 1998, dictates whether the cosmos will collapse, freeze, or rip apart.
Quiz
What is the term for the theoretical cycle where a Big Crunch leads to another Big Bang?
Quiz
What objects are left behind at the very end of the Big Freeze before they evaporate?
Quiz
In which year did astronomers discover that the expansion of the universe is accelerating?