Prefer Newsweek on Google to see more of our trusted coverage when you search. A number of mysterious large spherical objects have washed up on the beaches of the Black Sea between March and July, ...

Vietnam's military is investigating the appearance of three mysterious metal balls -- believed to be debris from space -- which landed in the country's remote north, a senior army official said Friday ...

New drive technologies combined with lighter and stronger materials will make the airplanes and automobiles of the future more fuel-efficient. But a number of technical details need to be resolved ...