Explore Gravitational Waves: 5 Things You Didn’t Know. Today scientists are expected to announce the discovery of an “echo of the big bang” Update: It’s true!..
Gravitational waves are like ripples in space-time.
They’re made when two or more really huge objects interact .
Gravitational waves were also made during the big bang.
The discovery of primordial gravitational waves would provide evidence for inflation in the early universe.
You can find them by measuring stretches in space-time.
We have never detected gravitational waves directly.