Albert Einstein was a renowned physicist who revolutionized our understanding of the universe.

A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.

The Cassini–Huygens mission was a collaborative effort between NASA, the European Space Agency (ESA), and the Italian Space Agency (ASI) to explore and study Saturn, its rings, and its moons.

CERN (European Organization for Nuclear Research) is a renowned and highly respected international laboratory situated in Meyrin, Switzerland.

The European Space Agency (ESA) is an intergovernmental organization dedicated to space exploration and scientific research.

The first direct observation of gravitational waves was made on 14 September 2015 and was announced by the LIGO and Virgo collaborations on 11 February 2016.

Gravitational-wave astronomy is a subfield of astronomy concerned with the detection and study of gravitational waves emitted by astrophysical sources.

A gravitational-wave detector (used in a gravitational-wave observatory) is any device designed to measure tiny distortions of spacetime called gravitational waves.