How is the universe expanding? And What keeps it expanding?

203 viewsOtherPlanetary Science

I’m really curious about how the universe’s expansion works and what keeps it going. A thought crossed my mind: could it be mainly because of the law of conservation of energy?

In: Planetary Science

5 Answers

Anonymous 0 Comments

Congratulations on asking one of the biggest unanswered questions in physics…..

No one knows. But the issue isn’t that it keeps expanding (that could happen through the initial impulse from the big bang). The issue is that its rate of expansion is increasing, which under every current theory of physics, would require more energy. Since that energy source can’t be located, it’s known as “dark energy”.

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