Why is hubble time the age of the universe?
65566
Estimating age of the universe by Hubble's law?
36619
Effect of space time relativity on the age of the universe?
152335
Calculate distance of galaxy 13 billion years ago
124618
How can we know the time frames for events in the early universe?
117108
Is the Universe being dragged into a singularity rather than expanding?
102370
At what speed does our universe expand?
13662
Did time exist before the Big Bang and the creation of the universe?
51361
How does the Hubble parameter change with the age of the universe?
102908
Explaining to an 8-year-old why nothing can travel faster than light
115987
How can time be relative?
117371
Is Time travel in "Star Trek: Enterprise" totally illogical?
26354
Is anti-matter matter going backwards in time?
15715
How can the Schwarzschild radius of the universe be 13.7 billion light years?
10556
Can the Hubble constant be measured locally?
14023
The arrow of time and the cosmology of a black hole interior
67661
Is there an observable of time?
53450
What's the avarage temperature of the Universe?