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Special Report

The Discovery of Gravitational Waves

All you need to know about the ripples in spacetime detected by LIGO

  • February 14, 2016

Gravitational Waves Found: Kip Thorne Explains

Scientific American's Josh Fischman talks with renowned astrophysicist and general relativity expert Kip Thorne about the discovery of gravitational waves by the LIGO Project, co-founded by Thorne.
 

February 11, 2016 — Josh Fischman and Steve Mirsky

Watch How Gravitational Waves Dance across the Universe

LIGO scientist David Reitze takes us on a 1.3 billion year journey that begins with the violent merger of two black holes in the distant universe. The event produced gravitational waves, tiny ripples in the fabric of space and time, which LIGO detected as they passed Earth on September 14, 2015.

February 11, 2016

Not All Gravitational Waves Are Created Equal

The LIGO experiment hunts for gravitational waves that are different from those sought by BICEP2. Although both types are elusive, they differ in age and strength—and come from very different places

January 14, 2016 — Clara Moskowitz