"The crash of binary neutron stars is like a gigantic gold factory in the universe," said Jin Zhiping, an associate researcher with the observatory and a member of an international team that analyzed optical signals.

The host galaxy of the incident is located about 130 million light years from the Earth.

In 2017, LIGO detectors confirmed the existence of gravitational waves produced during the merger of two black holes, which were predicted by Albert Einstein's theory of general relativity 100 years ago.

So far, LIGO and its partners have discovered four cases of gravitational waves coming from mergers of two black holes.

The Chinese telescope is a catadioptric optical telescope with an entrance pupil diameter of 500 mm. Its unique location allows for continuous observations lasting longer than 24 hours during the austral winter.

China's first X-ray astronomical satellite, a Hard X-ray Modulation Telescope named Insight, also contributed to the detection.

Only two months after its launch, the satellite successfully monitored the space where the incident occurred.

Chinese scientists forecast that the next achievement in observation might be gravitational waves coming from the merger of a binary neutron star and a black hole.

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