gravitational wave

General relativity makes many incredible predictions, but one of the most amazing is how matter can warp space. Rapidly moving heavy objects like black holes can even cause ripples in space-time called gravitational waves. In this 13-minute episode of Subatomic Stories, Fermilab scientist Don Lincoln tells us all about them.

When LIGO and Virgo detected the echoes that likely came from a collision between a black hole and a neutron star, dozens of physicists began a hunt for the signal’s electromagnetic counterpart.