Light bending by gravity? Photons are massless!
341
How is light affected by gravity?
69709
How can a photon oscillate when it experiences no time?
57305
Relativistic Mass and Gravity
12422
Derivation of $E=pc$ for a massless particle?
15685
Does slowing light violate relativity?
155738
Can light be a spinor?
11053
Planck's Law in terms of wavelength
87598
Can we define the effective mass or the moving mass of a photon?
13251
Does a photon in vacuum have a rest frame?
44239
Why the extra term $\frac{1}{2}(\partial_{\rho}A^{\rho})^2$ in the photon Lagrangian?
55085
How come a photon acts like it has mass in a superconducting field?
157882
Why are gluons believed to be massless?
142441
If rest mass does not change with $v$ then why is infinite energy required to accelerate an object to the speed of light?
134172
Photons acting as carriers of both attractive and repulsive forces
44164
Light Travels in straight line even in gravity
35409
Massless charged particles
26670
Explain how (or if) a box full of photons would weigh more due to massless photons