What about the mass of light?
24863
How can gravity affect light?
138493
How does light oscillate?
115786
Speed of gravitational waves and light
121299
Planck mass is about the mass of one eyebrow hair
57773
About the speed of light and gravity
32388
Does relativistic mass have weight?
117653
How does light travel?
37345
Why can't massless particle exceed speed of light?
77372
"Speed" of Gravity and Speed of Light
104024
Does the mass of an electron change with its "energy state"?
55085
How come a photon acts like it has mass in a superconducting field?
116671
How much light is there in space and how heavy is it?
59594
Binding energy and mass
15605
What is the difference between weight and mass?
52418
What exactly is a quantum of light?
8367
What do physicists mean when they say "speed of light"?
3909
Does $E = mc^2$ apply to photons?