In physics, gravitational waves are ripples in the curvature of spacetime which propagate as a wave, travelling outward from the source. Predicted to exist by Albert Einstein in 1916 on the basis of his theory of general relativity, gravitational waves theoretically transport energy as gravitational radiation.
1. Two stars of similar mass are in highly elliptical orbits about their center of mass
3. Two stars of similar mass are in circular orbits about their center of mass
“When I look up at the night sky, and I know that, yes, we are part of this Universe, we are in this Universe, but perhaps more important than both of those facts is that the Universe is in us. When I reflect on that fact, I look up—many people feel small, because they’re small and the Universe is big, but I feel big, because my atoms came from those stars.” - Neil DeGrasse Tyson [x]
[noun] mfrom Latin globulus, from globus (“globe”); a small round particle of substance; a drop; a spherical body.