An curved arrow pointing right. Engineers at Japan's Fukushima nuclear power plant have designed an "ice wall" to stop the spread of radiation into the groundwater. Produced by Maya Dangerfield.

The world's biggest iceberg — a wall of ice the size of Rhode Island — is lumbering toward a remote island off Antarctica that's home to millions of penguins and seals. The trillion-ton slab ...

Plant operator Tokyo Electric Power Co. froze the soil to create an underground ice wall to divert the groundwater ... a different reactor building broke down. The rainwater there likely seeped ...