Speed of at expansion at the start of the big bang
102370
At what speed does our universe expand?
114934
Bootstrap Paradox in Interstellar
68684
Age of the CMB: How do we know?
82330
What does one second after big bang mean?
46510
Relativity and Galaxy Rotation Speed
95879
Other explanation for cosmological redshift?
113304
Universe expands ... compared to what?
58042
Redshifting of Light and the expansion of the universe
134905
What was the entropy of the universe at the time of the Big Bang?
86328
What is the relative speed of two near-light speed particles headed towards each other?
152888
Schwarzschild Radius of the Universe
136281
Is the universe expanding, or is everything in it getting smaller?
2790
Can space expand with unlimited speed?
3103
How do we know the universe is expanding, and not that its contents are shrinking?
43888
Age of universe?
2073
Conservation law of energy and Big Bang?
124618
How can we know the time frames for events in the early universe?