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Mysterious US spacecraft returns after 908 days, speculation grows over secret mission

Not much is known about the details of the record-breaking spacecraft. But the officials claim that it was doing many scientific experiments about 400 km above the earth. The X-37B was built by the Boeing Company for NASA before being used by the US military

Sikkim standoff: US encourages India, China to engage in direct dialogue 'free of coercive aspects'

"We encourage India and China to engage in direct dialogue aimed at reducing tensions and free of any coercive aspects," a defence department spokesman said

F-35 stealth fighters grounded in the US because of problems in the oxygen supply system

The US Air Force has temporarily grounded dozens of F-35 stealth fighters while it investigates an oxygen supply issue aboard the expensive planes.