How age of universe or galaxy estimated?
10835
How has the age of the Universe been derived from the observations made by the Planck mission?
108910
Age of the universe $ \equiv 1/H$?
58042
Redshifting of Light and the expansion of the universe
64734
Distribution of Dark Matter around galaxies
76179
Galactic Rotation Speeds - Ehrenfest Paradox, Gravitational time dilation, Dark Matter - all of the above?
23347
Are all galaxies we see really our Milky Way? Any possibility?
9646
How is Doppler redshift of distant galaxies established?
135755
Many-worlds: how often is the split how many are the universes? (And how do you model this mathematically.)
123545
How Are Galaxies Receding Faster Than Light Visible To Observers?
15715
How can the Schwarzschild radius of the universe be 13.7 billion light years?
141468
How to calculate my age
36619
Effect of space time relativity on the age of the universe?
152335
Calculate distance of galaxy 13 billion years ago
112408
What is the theoretical limit for farthest we can see back in time and distance?
63483
How do scientists calculate the percentage of dark energy in the universe?
1876
Is the sensitivity of the LIGO sensitive enough to measure the "expansion of the universe"? What specifically is the numerical ratio of effects?
148838
Is the total mass of the universe constant in time?