MIT robot sends data beneath Arctic ice at 1.2 kilobytes per second

Beneath 3.6 feet of Arctic sea ice, an MIT team lowered a remotely operated vehicle and transmitted data at approximately 1.2 kilobytes per second. The test formed part of the U.S. Navy’s Operation Ice Camp 2026 and involved a prototype system that uses magnetic fields to communicate through the ice.

Researchers from MIT Lincoln Laboratory are developing a network of relatively inexpensive sensors to monitor the Arctic continuously. Their work began during Operation Ice Camp 2024, when commercial off-the-shelf sensors detected sounds including marine-mammal vocalizations. This year, the team returned with a higher-fidelity geophone designed to detect vibrations moving through sea ice.

The Arctic environment is becoming more difficult to access as ice breaks up and retreats. Cracking ice produces distinctive acoustic signatures, while increased access to previously hard-to-navigate waters could bring more ships and activity. Researchers say better acoustic monitoring could support scientific observation, infrastructure planning, environmental resilience and maritime awareness.

Fieldwork faced its own obstacles. Consecutive blizzards, whiteout conditions, temperatures around minus 25 degrees Fahrenheit and winds of 25 to 30 mph, with gusts reaching 40 mph, delayed flights to the temporary camp by a week. After researchers arrived, another five days passed without a flight. Deteriorating weather ultimately forced the team back to camp after it deployed only about a quarter of the planned sensor package.