LIGO uses laser light, but why are the lasers not altered by the gravitational waves?
If gravitational wave affects light, how does LIGO prevent its lasers from being affected?
Do lasers emit polarized light? What lies ahead for General Relativity now that LIGO has detected gravitational waves? Why is light affected by gravity if photons are massless? How does gravity affect light if it has no mass? Does laser light have mass? If photons are massless why can't light escape Black hole's Gravity? Can we use laser as street light? How does GravityLight work? Why can't light overcome gravity in a blackhole? How does a laser emit polarized light? What is a laser? Is laser perfectly unidirectional? If gravity bends light, can light bend gravity? What is light caused by? What is the scope of laser in the future? Are gravitational waves just light speed ripples in space/time? What causes light to be light? How is infrared light dangerous? If light has no mass how can a black hole pull it by gravitational force? How can a black hole absorb light if it is massless? If I fire a laser beam into space, will it continue traveling until it reaches the edge of the universe? What propels light? Does light travel through space forever? What is the most powerful laser? What happens to the photons when I switch off the light? What we will see if solar powered lasers remove the atmosphere of Uranus? What is the cause of dispersion of light? If light has no mass how do black holes absorb it? What are laser scopes? How big do colliding black holes need to be in order to generate detectable gravitational waves?