Leonid Kulik

Leonid Kulik (1883–1942) was a Russian mineralogist born in Tartu, Estonia, who devoted much of his career to acquiring and studying meteorites. In 1921, he was tasked with setting up an expedition to locate and examine meteorites that fell within the Soviet Union.

• Led the first scientific expeditions to the Tunguska event site in Siberia following the 1908 explosion
• Organized major expeditions in 1927, 1929, and 1939 to document the devastation pattern
• Found felled splintered trees lying radially for 15–30 km (10–20 miles), with everything devastated and scorched
• Searched extensively for a meteorite crater, which was never found
• Returned to the site multiple times despite initial resistance from colleagues and the extreme remoteness of the region

Kulik's pioneering fieldwork established the foundations for modern impact event research. His expeditions provided crucial documentation of how an asteroid or comet airburst (likely the cause of the 1908 explosion) flattened approximately 2,150 square kilometers of forest. Though he failed to find physical meteorite evidence, his work helped make sense of what had happened and demonstrated the importance of systematic field investigation.

Kulik died in 1942 in a German prisoner of war camp during World War II. He was hailed in the 1930s as Russia's preeminent mineralogist and meteorite expert, and the Soviet Union honored him by placing his portrait on a postage stamp commemorating the 50th anniversary of the Tunguska event.