Doppler shift of light from stars and galaxies
9646
How is Doppler redshift of distant galaxies established?
114449
Gravitational slingshot of light using a black hole/massive object
33110
The origin of the value of speed of light in vacuum
130146
Smolin on Cosmological selection and neutron stars
27531
Using map projections with astronomical data
37941
Can light travel slower than the maximum?
40971
Interstellar Image Effects
153488
How do you measure wavelength/frequency of light
127383
Speed of light in general relativity
56753
Is it possible that galaxies' redshift is caused by something else than the expansion of space?
96397
Optical explanation of images of stars?
60363
Photoelectric effect in a a frequency range
25282
Phase shift of 180 degrees of transversal wave on reflection from denser medium
127543
Determining the path of a light ray
56911
Proving invariance of $ds^2$ from the invariance of the speed of light
115786
Speed of gravitational waves and light
974
Speed of light in a gravitational field?