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Space-expansion
New post in Space-expansion
Does the large red shift value of galaxies mean they are far away?
August 1st, 2022
galaxies
space-expansion
cosmology
Is time speeding up due to the expansion of space?
March 7th, 2020
time
space-expansion
gravity
If the universe is expanding will gravitational attraction eventually go to zero?
September 11th, 2020
universe
space-expansion
cosmology
gravity
Where does the energy go when light is redshifted?
November 17th, 2020
cosmology
energy-conservation
doppler-effect
space-expansion
redshift
Calculating the redshift in cosmological constant dominated universe
August 1st, 2022
cosmology
redshift
homework-and-exercises
space-expansion
Do atoms expand with universe?
August 1st, 2022
particle-physics
general-relativity
cosmology
atoms
space-expansion
Age of the CMB: How do we know?
September 4th, 2020
cosmic-microwave-background
big-bang
space-expansion
time
Age of the universe $ \equiv 1/H$?
August 1st, 2022
big-bang
space-expansion
time
spacetime
cosmology
What is meant by a "sodium line"?
August 1st, 2022
space-expansion
spectroscopy
doppler-effect
astronomy
homework-and-exercises
Why do we theorize that the Big Bang created space?
August 1st, 2022
space-expansion
vacuum
big-bang
spacetime
Why is the singularity of the Big Bang not considered to be the center of the Universe?
August 1st, 2022
cosmology
singularities
big-bang
space-expansion
universe
Redshift of light in dark matter
August 1st, 2022
astrophysics
gravitational-redshift
space-expansion
dark-matter
visible-light
Redshift-distance relation, and redshift-scale factor relation
August 1st, 2022
cosmology
redshift
general-relativity
space-expansion
If everything in the universe doubled in size overnight, would it be noticeable?
June 2nd, 2020
cosmology
space-expansion
universe
gravity
Why the temperature is getting lower when the universe is expanding
February 1st, 2020
temperature
space-expansion
thermodynamics
cosmology
statistical-mechanics
Evidence for expansion of space
August 1st, 2022
general-relativity
cosmology
space-expansion
relative-motion
spacetime expansion and universe expansion?
April 24th, 2020
general-relativity
cosmology
big-bang
space-expansion
Why isn't the universe uniform?
August 1st, 2022
cosmology
space-expansion
big-bang
randomness
Time dilation of distant cosmic events. What is it?
February 23rd, 2022
supernova
general-relativity
cosmology
space-expansion
time-dilation
How does critical density affect the expansion of the universe if gravity is the curvature of space-time?
June 21st, 2020
gravity
space-expansion
spacetime
cosmology
general-relativity
Where did energy come from?
May 31st, 2020
big-bang
cosmology
energy-conservation
universe
space-expansion
Average Density of the Universe over Time
December 23rd, 2021
space-expansion
energy
cosmology
dark-matter
density
Size of the Observable Universe
August 1st, 2022
observable-universe
cosmology
universe
space-expansion
faster-than-light
Why is Hubble's constant exactly the inverse of the age of the universe?
October 16th, 2020
big-bang
cosmology
time
space-expansion
Expansion of the Universe regarding Time and lightspeed
August 1st, 2022
time
space-expansion
spacetime
speed-of-light
cosmology
Equation for Hubble Value as a function of time
August 1st, 2022
space-expansion
universe
cosmology
general-relativity
big-bang
Does the expansion of the universe soon after the Big Bang affect the amount of time that light takes to reach us?
August 1st, 2022
space-expansion
spacetime
time
big-bang
speed-of-light
How far has a 13.7 billion year old photon travelled
August 1st, 2022
astrophysics
space-expansion
cosmological-inflation
observational-astronomy
cosmology
The CMB and the Hubble comoving radius
May 18th, 2020
cosmology
space-expansion
cosmological-inflation
cosmic-microwave-background
redshift
Does the universe have a different age to different observers?
July 2nd, 2020
cosmology
time
general-relativity
reference-frames
space-expansion
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