Note: Single-source report; awaiting corroboration.
Peter I Island, an icy volcanic landmass about 400 kilometers off West Antarctica in the Bellingshausen Sea, was recently the site of striking atmospheric phenomena captured by NASA's Landsat 8 satellite. On a summer day in 2026, the satellite imaged von Kármán vortex streets—alternating, counterrotating spirals of clouds that form as wind is deflected and slowed by the island. These vortices typically develop when wind speeds range from 18 to 54 kilometers per hour, as was likely the case that day.
The island features a 100-meter-wide circular crater at its summit, rising to about 1,640 meters above sea level. It is classified as a shield-like volcano, though no recent eruptions have been documented. Research on Peter I Island has been limited due to its remote location and the challenging ice conditions surrounding it. The island was first discovered in 1821 but remained unvisited until 1929.
NASA conducted an airborne science mission, Operation IceBridge, in 2011 to collect measurements over polar ice near the island. During a return flight to Chile, the mission team observed the island and its surroundings, contributing to ongoing scientific efforts to study the region's geology, biodiversity, and climate history as recorded by the ice.