Antarctic Expedition to ‘Danger Zone’ Accidentally Discovers Previously Uncharted Island

A 93-strong international expedition team has been exploring the northwestern Weddell Sea in the Antarctic on board the Alfred Wegener Institute's icebreaker Polarstern since 8 February 2026. In this key region for global ocean currents, the focus has been on the outflow of ice and water from the Larsen Ice Shelf and the astonishing sea ice retreat of recent years. When the research work had to be interrupted due to rough weather conditions in order to seek shelter in the lee of Joinville Island, the scientists and ship's crew were surprised by the sudden appearance of an island that had previously only been marked as a danger zone on the available nautical charts.
“On our route, the nautical chart showed an area with unexplored dangers to navigation, but it wasn’t clear what it was or where the information came from,” reports Simon Dreutter from the Bathymetry section at the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI). As a specialist in underwater mapping, this aroused his curiosity. “I scoured all the coastlines we had here in the bathymetry lab and went back to the bridge. Looking out of the window, we saw an ‘iceberg’ that looked kind of dirty. On closer inspection, we realised that it was probably rock. We then changed course and headed in that direction and it became increasingly clear that we had an island in front of us!”

The island—which is roughly the size of the White House (about 66,740 square feet, or 6,200 square meters)—does not have a name yet, according to the Alfred Wegener Institute’s Polarstern team. The newly discovered island has now been completely surveyed, and its precise geographic coordinates will soon be added to international nautical charts and other critical datasets.