Gravity wave

Gravity waves are generated in a fluid (e.g. the atmosphere), when a fluid parcel is displaced (e.g. by convection) to a region with a different density. If the fluid stratification is stable, the parcel will start to oscillate around the point where there is no net force. Since the fluid is a continuous medium, a traveling disturbance[?] will result.

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Gravity wave also refers to a completely different phenomenon also known as gravitational radiation.

According to general relativity, gravity can cause oscillations, or ripples, in spacetime which can transmit energy. Scientists are eager to find a way to detect these gravitational waves, since they could help reveal information about the very structure of the universe.