An award ceremony celebrates winners of the 13th Shing-Tung Yau College Student Mathematics Contest in Hefei, Anhui province, on Sunday.CHINA DAILY Over the past 12 years, more than 16,000 ...

How many invitees guarantee at least a certain number all know each other? Formula is first major improvement since 1935. If you invite six people to a party, either at least three of them will all ...

An astronomer says he’s identified the odds of intelligent life existing elsewhere in the universe based on an analysis of both the likelihood of life developing quickly within a planet’s life cycle ...