The 10-foot-long dusky shark, nicknamed “Bukangi,” was successfully guided back to the open ocean after a third rescue attempt.

© Kim Hong-Ji/Reuters

A satellite image sent researchers to a remote Pacific atoll, but their findings brought no resolution to the decades-old search. Here’s what to know.

© The New York Times

Three celebrities date artificial intelligence avatars on a reality show made in South Korea, where A.I. is hugely popular.

Stranded in a port waterway for weeks, the 10-foot fish has attracted more than a million spectators, while officials try to guide her back to open sea.

© Yonhap News Agency, via Reuters

The police in the city of Incheon said they had arrested one man and were investigating his motive.

© Yonhap News Agency, via Reuters

The president said there were signs that such models were used in recent attacks on several banks involving customer data. Police are investigating.

© Ahn Young-Joon/Associated Press