A gravity wave can refer to two distinct phenomena:
Gravitational Wave: As per Einstein’s theory of general relativity, gravitational waves are ripples in spacetime caused by the acceleration of massive objects, such as merging black holes or neutron stars. These waves propagate through space, carrying energy away from the source. Direct detection of gravitational waves was achieved in 2015, opening a new era in astrophysics.
Gravity Wave (Atmospheric): In atmospheric science, a gravity wave is a perturbation or oscillation in the atmosphere’s density, temperature, or wind field caused by the force of gravity. These waves can have various sources, including air flowing over mountains or disturbances in the upper atmosphere. Atmospheric gravity waves can influence weather patterns and contribute to the vertical transfer of energy and momentum in the atmosphere.