He Thought He Found A Dirty Iceberg, But Then He Realized It Was An Uncharted Island In An Antarctic Danger Zone

On February 8, 2026, an expedition team of 93 members onboard the Alfred Wegener Institute's RV Polarstern began exploring the northwestern Weddell Sea in the Antarctic.

They were focused on investigating the flow of ice and water out of the Larsen Ice Shelf and the disappearance of sea ice in recent years.

They ended up making a surprising discovery after pausing their research to seek shelter on Joinville Island due to poor weather conditions.

In the process of sheltering in place, the team saw an island that had previously appeared only as an unexplored danger zone on nautical charts.

"On our route, the nautical charts showed an area with unexplored dangers to navigation, but it wasn't clear what it was or where the information came from," said Simon Dreutter, one of the researchers.

At first, they thought it was a dirty iceberg. Upon closer inspection, they realized it was more like a rock. Finally, they determined that it was actually an island in front of them.

They carefully steered toward the island and used the multibeam echo sounder onboard to survey the seabed. They also used a drone to collect images and analyzed the photos to measure the elevation and coastline.

It was the first time that this island had been officially surveyed and recorded. The island was about 427 feet long, 164 feet wide, and sticks about 52 feet out of the water.

The experts aren't sure why the island was marked as a danger zone on the nautical chart. It was also one nautical mile off from its actual location.

Sven Taubert - stock.adobe.com - illustrative purposes only

Sign up for Chip Chick's newsletter and get stories like this delivered to your inbox.

When studying satellite images, the island is almost indistinguishable from the many icebergs in the area.

The next step is to name the newly discovered island. Once the island has been named, the team will publish the exact position of the island on international nautical charts.

Aside from the previously uncharted island, the research team found that the outflow paths of cold water from the Larsen Ice Shelf have narrowed, greatly affecting global ocean currents and contributing to the melting of sea ice.

For a long time, Antarctic sea ice had been considered relatively stable. But since 2017, the summer sea ice in the northwestern Weddell Sea has seen a significant decline due to warmer surface water.

"The ice thickness showed great regional variability. On the western, shallow continental shelf in particular, the ice was up to [13 feet] thick, which we can attribute to strong deformation caused by the tides and the proximity to the coast. The ice further east came from the large Ronne and Filchner ice shelves and was less deformed with thicknesses of around [five feet]," said Dr. Christian Haas, the head of the expedition.

The expedition ended on the Falkland Islands on April 9, 2026. The Polarstern is traversing across the Atlantic and is expected to reach its home port of Bremerhaven in mid-May.