Everything said in that NANOgrav link is mind-blowing.
Slow, undulating waves in spacetime. Detected via observations of triangulated pulsars.
Now THIS is what I love in humanity.
It's playful. It's clever. In fact, it's brilliant. It's the sense of curiosity and discovery. It's about finding the unexpected and even the unimaginable.
EDIT: It's like the man said...
"We’re using a gravitational-wave detector the size of the galaxy that’s made out of exotic stars, which just blows my mind,” exclaims National Radio Astronomy Observatory’s Dr. Scott Ransom.