The conversation between human and AI assistant.
Is time travel possible after the discovery of gravitational waves?
Can you explain how gravitational waves were discovered?
Gravitational waves were first directly detected in 2015 by the Laser Interferometer Gravitational-wave Observatory (LIGO). The detectors are able to measure tiny ripples in space-time caused by the collision of two black holes or neutron stars, which produce gravitational waves that travel through the universe at the speed of light.