What exactly is the cosmological constant?
113662
What does the 'cosmological constant' represent?
19607
Can the gravitational constant $G$ be calculated theoretically?
13080
Why is the cosmological constant a scalar?
63748
What does it mean that the universe is "infinite"?
56103
Is the universe finite or infinite?
108910
Age of the universe $ \equiv 1/H$?
33694
What is the real interpretation of Planck's constant and what are its origins?
110351
Is the universe really "fine-tuned for life"?
57428
Physical Interpretation of Planck's Constant
42085
What is meant by the temperature of the CMB?
9463
What is the proof that the universal constants ($G$, $\hbar$, $\ldots$) are really constant in time and space?
111371
What really is Spacetime?
54636
Dark Energy / Accelerating universe: naive question
92673
Did Newton estimate the gravitational constant $G$?
78769
Assuming that the Cosmological Principle is correct, does this imply that the universe possess an empirically privileged reference frame?
13319
Recognize physical constants?
152130
Maximum size of the observable universe?