This undated handout photo made available by the Kiel-based GEOMAR oceanographic research centre on March 23, 2026 shows a groundmine with TNT in the foreground on the seafloor of the Baltic Sea. Just a few kilometres from the beaches of northern Germany's Kiel Bay, huge quantities of World War II munitions are slowly disintegrating underwater near where summer crowds dive in from the beaches. This site, one of the most polluted in the Baltic Sea, is the starting point for the expedition of the scientific research vessel Alkor, belonging to the Kiel-based GEOMAR oceanographic research centre. The ship's crew of 11 sailors and a dozen scientists from Germany, Poland and Lithuania are spending three weeks aboard studying how these toxic weapons dumping grounds are contaminating the waters of the Baltic, one of the regions of the globe most affected by munitions and shipwrecks. (Photo by Handout / GEOMAR / AFP via Getty Images) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / GEOMAR" - HANDOUT - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS

People hold signs reading "Ashamed to be an american" and "American Science is being destroyed" as they attend a demonstration with the motto "No Tyrants - Global Day of Defiance" to protest against the current US politics on March 28, 2026 in Vienna. (Photo by MAX SLOVENCIK / APA / AFP via Getty Images) / Austria OUT

Visitors take pictures of a transforming car during the Beijing Sci-Fi Carnival in Beijing on March 28, 2026. (Photo by ADEK BERRY / AFP via Getty Images)

A girl uses VR headset to explore interplanetary simulations during the Beijing Sci-Fi Carnival in Beijing on March 28, 2026. (Photo by ADEK BERRY / AFP via Getty Images)

People look at a transforming car during the Beijing Sci-Fi Carnival in Beijing on March 28, 2026. (Photo by ADEK BERRY / AFP via Getty Images)

People visit the Kuro Games' stand during the Beijing Sci-Fi Carnival in Beijing on March 28, 2026. (Photo by ADEK BERRY / AFP via Getty Images)

People look at a transforming car during the Beijing Sci-Fi Carnival in Beijing on March 28, 2026. (Photo by ADEK BERRY / AFP via Getty Images)

A man sits in a transforming car during the Beijing Sci-Fi Carnival in Beijing on March 28, 2026. (Photo by ADEK BERRY / AFP via Getty Images)