Gravitational Waves

Gravitational waves are ripples in the fabric of Spacetime itself, produced when massive objects accelerate through space. Predicted by Einstein's Theory of Relativity in 1916, they travel at the speed of light and carry energy away from their source.

These waves are extraordinarily subtle—the 2015 detection of waves from two colliding Black Holes required the sensitivity of LIGO, which measured distortions smaller than a proton's width. Since then, astronomers have observed gravitational waves from Neutron Star mergers, supernovae, and other cosmic cataclysms.

Gravitational waves are fundamentally different from Gravity itself. While gravity describes the attraction between masses, gravitational waves are dynamic disturbances that propagate outward, carrying information about violent cosmic events across billions of light-years. They represent a new sense through which we observe the Universe—complementing traditional Astronomy using light and Electromagnetism.

Their detection opened Multimessenger Astronomy, where scientists combine gravitational wave data with observations across the electromagnetic spectrum. This has revolutionized understanding of Cosmology, stellar death, and the nature of extreme physics.

Related

Spacetime, LIGO, Black Holes, Neutron Stars, Multimessenger Astronomy, Electromagnetism