An increasing number of Koreans are inhaling nitrous oxide ― better known as laughing gas ― from balloons as a party drug to experience feelings of euphoria. Over the past few months, the “happy ...

The “Moon of Seoul,” a moon-shaped tethered balloon, made a test flight over Yeouido Park in western Seoul on Sunday. Filled with helium gas, the balloon will undergo test flights through July and is ...

The Ministry of Environment is set to ban the inhalation of nitrous oxide -- better known as laughing gas. It said it will announce legislation this month that designates the gas as a hallucinogen, ...