North Korean cheerleaders support the South Korean men’s ice hockey team in PyeongChang.
Larry W. Smith/EPA
Sometimes diplomacy won the day, sometimes it didn’t.
The average margin in gold medal games across the last four Olympics is 3.5 goals in men’s competition and 1.5 goals in women’s competition.
Reuters/Laszlo Balogh
Three things go a long way to deciding water polo medallists.
Olympic authorities were quick to deny that the green pool posed a risk to divers’ health, but that actually depends on why the water changed colour.
Reuters/Antonio Bronic
The possible culprits are: a sudden algae bloom; a change in pool alkalinity; or a chemical reaction in the water. How do these cause a change in the colour of the water?