Question

1. Dark Energy (a) How can we test whether our universe has a cosmological constant? (b)...

1. Dark Energy

(a) How can we test whether our universe has a cosmological constant?

(b) What would it mean if a cosmological constant can explain the acceleration of the universe? What question(s) would that raise?

(c) What would it mean if a cosmological constant cannot explain the acceleration of the universe? What question(s) would that raise?

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