The first evidence for gravitational waves came from
A) mapping the orbits of stars near the center of our Galaxy.
B) periodic ripples in the distances between objects.
C) the cosmic microwave background.
D) the changing orbits of neutron stars.

Question

Quizplus · Accepted Answer

The first evidence for gravitational waves came from the observation of the changing orbits of neutron stars, specifically the Hulse-Taylor binary system. This system consists of two neutron stars orbiting each other, and their changing orbit due to energy loss in the form of gravitational waves was a key piece of evidence supporting the existence of gravitational waves, as predicted by Einstein's theory of general relativity.

The First Evidence for Gravitational Waves Came from