More than 5,000 feet beneath the surface of the Gulf of Mexico, scientists encountered a truly alien landscape that might just haunt your dreams.

[…]

washing machines

https://www.youtube.com/watch?v=qoXVNyy73tc

looming out of the deep blue, the crew encountered the mother of all cuboids: a crumpled red shipping container, with a clutch of yet more white cubes spilling from its flayed side.

The cubes were a lost payload of white goods: fridges, freezers, washing machines. The inscribed tablet, a set of instructions for doing the laundry.