"Vanishing Act: Submersible Lost Beneath Antarctica's Doomsday Glacier"

A submersible named Ran, used to study the underneath of Antarctica's "doomsday glacier" Thwaites, has mysteriously disappeared during its latest expedition. The uncrewed underwater vehicle, which had been successfully diving underneath the ice, failed to appear at the rendezvous point during one trip and has not been located despite extensive searches. The researchers suspect it ran into trouble under the ice, and its batteries are now dead. The team plans to replace the submersible and continue its important research.