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Redshift
New post in Redshift
Is there cosmological redshift within the Milky Way?
August 1st, 2022
redshift
doppler-effect
space-expansion
cosmology
milky-way
Can we use redshift measurements to determine absolute velocity?
August 1st, 2022
cosmic-microwave-background
space-expansion
relative-motion
cosmology
redshift
Why doesn't the escape of electromagnetic waves from a microwave depend on the reference frame, because of the Doppler effect?
December 24th, 2020
redshift
electromagnetism
special-relativity
microwaves
Galaxy getting closer faster than light
August 1st, 2022
spacetime
space-expansion
redshift
cosmology
What wavelength was the CMB originally?
August 1st, 2022
cosmic-microwave-background
space-expansion
cosmology
redshift
How abruptly does the Doppler shift change sign?
October 13th, 2020
special-relativity
redshift
doppler-effect
Does an object's redshift actually decrease with time?
October 9th, 2020
redshift
space-expansion
cosmology
Does red shift evidence necessarily imply that the universe started from a singularity?
December 25th, 2020
redshift
universe
cosmology
big-bang
singularities
If space is "expanding" in itself - why then is there redshift?
August 1st, 2022
spacetime
cosmology
space-expansion
redshift
How can the rest-frame spectrum of redshifted light be determined?
August 1st, 2022
visible-light
electromagnetic-radiation
frequency
spectroscopy
redshift
Why isn't the De-Broglie wavelength of massive particles redshifted in an expanding universe
August 1st, 2022
cosmology
general-relativity
redshift
gravitational-redshift
Does the Earth's rotation affect redshift measurements?
August 1st, 2022
estimation
redshift
optics
astronomy
Red shifted to what?
August 1st, 2022
frequency
redshift
electromagnetic-radiation
cosmology
visible-light
How do you calculate the recession velocity?
August 1st, 2022
absorption
redshift
doppler-effect
How can we find out the distance to a galaxy using redshift?
April 17th, 2020
distance
space-expansion
redshift
Redshift - How can $z$ be greater than 1?
August 1st, 2022
space-expansion
special-relativity
doppler-effect
redshift
Cosmic Scale Factor $R$ and redshift
April 28th, 2020
space-expansion
cosmology
redshift
astronomy
Redshift of mass-dominant universe
October 25th, 2021
cosmology
redshift
space-expansion
Where does the energy go when light is redshifted?
November 17th, 2020
doppler-effect
redshift
space-expansion
energy-conservation
cosmology
Calculating the redshift in cosmological constant dominated universe
August 1st, 2022
redshift
space-expansion
cosmology
homework-and-exercises
Redshift-distance relation, and redshift-scale factor relation
August 1st, 2022
space-expansion
general-relativity
cosmology
redshift
Kerr black hole horizons and infinite redshift surfaces
September 3rd, 2020
black-holes
event-horizon
kerr-metric
redshift
The CMB and the Hubble comoving radius
May 18th, 2020
space-expansion
redshift
cosmology
cosmological-inflation
cosmic-microwave-background
What is a layman explanation for why the wavelength of light increases when space itself expands?
August 1st, 2022
redshift
general-relativity
cosmology
space-expansion
Redshift of distant galaxies: why not a doppler effect?
October 24th, 2020
redshift
general-relativity
cosmology
space-expansion
doppler-effect
Distance between two galaxies of different redshift
June 28th, 2020
general-relativity
redshift
distance
space-expansion
cosmology
Is it possible to create a mirror that redshifts light?
August 1st, 2022
reflection
quantum-optics
redshift
non-linear-optics
optics
Redshifted Photon Energy
August 1st, 2022
photons
redshift
space-expansion
energy-conservation
cosmology
Can gravitational waves be red-shifted?
August 1st, 2022
doppler-effect
gravitational-waves
redshift