Scientists detected gravitational waves for the first time in 2015, using LIGO.

The Martian atmosphere is composed of over 95% carbon dioxide. Solar winds carry the thin, weak atmosphere away because Mars has a weak gravitational and magnetic field.

The observation of gravitational waves will start a new phase in the study of the universe.

As the years progressed, Newton completed his work on universal gravitation, diffraction of light, centrifugal force, centripetal force, inverse-square law, bodies in motion and the variations in tides due to gravity.

Scientists have announced that they have discovered gravitational waves.

Because their rapid pulse of radio emission is so predictable, a large array of well-understood pulsars can be used to measure extremely subtle abnormalities, such as gravitational waves.

The gravitational pull of a black hole is so powerful that even light cannot escape from it.

Astronomers think that if it were not for the giant planet Jupiter exerting its gravitational force on the asteroids in the belt, the inner planets would be constantly bombarded by large asteroids.

A consortium of astronomers said Thursday they had for the first time confirmed a prediction of Albert Einstein's theory of general relativity by observing the gravitational effects of a supermassive black hole on a star zipping by it.

Juno will map Jupiter's gravitational and magnetic fields.