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Researchers at Hiroshima University have developed a realistic, highly sensitive method to detect the Unruh effect—a long-predicted phenomenon at the crossroads of relativity and quantum theory. Their ...

General relativity describes gravitation in a geometrical framework generalizing special relativity and classical mechanics. This term includes theoretical studies of gravity, experimental studies of ...

Kannur: Writer T Padmanabhan has taken a dig at a recent state govt order insisting that officials address the chief minister and ministers with the prefix ‘bahumanapetta' (honourable) while ...

President Trump said Ukraine might be able to reclaim all its lost territory in the war against Russia. Earlier, he suggested NATO countries should shoot down Russian military aircraft that enter ...

A look at major figures who will appear during the week and what they might talk about. By Pranav Baskar This week kicks off the high-level part of the U.N. General Assembly, when world leaders meet ...

THE development of portable atomic clocks should help in testing general relativity. But experiments in which atomic clocks have been flown over long distances and brought back for comparison after ...

Defending his country’s military actions in an address to the General Assembly, Israel’s prime minister rejected the idea of a Palestinian state and called for the release of hostages held in Gaza.

China, for First Time, Vows to Reduce Greenhouse Gas Emissions President Xi Jinping told a U.N. climate conference that his country would seek to reduce emissions by at least 7 to 10 percent by 2035.

Mahmoud Abbas, the Palestinian Authority president, vowed that his people “will not leave our land.” His address came days after 10 Western countries joined 150 other nations in recognizing ...