General relativity

When you emit gravitational waves, they have to pass through the Universe. But do they gravitate, too?

Albert Einstein's theory of relativity is the basis for our understanding of the universe, but if you still aren't quite sure how it works, this video does an excellent job of explaining.

According to Albert Einstein’s general theory of relativity, gravity is no longer a force that acts on massive bodies, as viewed by Isaac Newton’s universal gravitation. Instead, general relativity links gravity to the geometry of spacetime itself, and particularly to its curvature. Learn more at the link!

Albert Einstein’s notebook

Space Time Continuum. Original illustration showing the link between space time , #AD, #Original, #illustration, #Continuum, #Space, #Time #ad

Otherwise, they'd be ferociously unstable.