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"Thanks to the optical detection of GW170817, reported from the AST3-2 telescope and at other southern telescopes, a day after its detection by LIGO, scientists are now closer to answering that question with a fascinating story of binary stellar evolution," Australian astronomer Jeremy Mould said in an article Glittering prospects at Dome A.

BEIJING, Oct. 1 (Xinhua) -- Tourism income in China rose 12.2 percent year on year on Sunday, the first day of the country's National Day holiday, China National Tourism Administration (CNTA) said.

"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.

There could be more cooperation between the Macao SAR and the mainland, such as training of personnel, sharing of meteorological data, the expert suggested.

China always strictly implements UN security council resolutions. At present, all parties should refrain from action that may escalate tensions and work to bring the issue back to the negotiating table, he said.