nkaz123

Seeing as they're called gravitational "waves," do they possess some of the wavelike properties we've learned about in high school? For example, light and sound waves can be refracted, reflected, diffracted, polarized, and so on. Do gravitational waves have these traits, and if so could you explain them a little?

Is NASA the only organization currently working on this project or is there some sort of collection of agencies planning the mission to Mars?

Does this ringing have to do with spacetime, or is the black hole getting larger and smaller? If the latter, does this cause the density of the black hole to decrease and would light then be able to escape?