South Korea on Friday said it had expressed its concerns to China after assessing that it recently returned a “large number” of North Koreans, including escapees, back to their homeland....
A submarine arms race is intensifying as China embarks on production of a new generation of nuclear-armed submarines that for the first time are expected to pose a challenge to growing U.S. and allied efforts to track them....
Researchers warn the shift can have dire consequences for animals like penguins who breed and rear their young on the sea ice, while also hastening global warming by reducing how much sunlight is reflected by white ice back into space....