The US is closely monitoring Chinese activities that potentially threaten American assets in space as debris rapidly accumulates in low Earth orbit, the head of United States military operations in space said Friday. Commander of US Space Command Army Gen. James Dickinson also cheered the overwhelming passage in the United Nations of a resolution that countries not conduct direct-ascent antisatellite tests that create vast fields of space debris, which endanger satellites and space stations. Of the four countries that have conducted such ASAT tests, the United States was the only one that voted in favour, while China and Russia voted...