Scientists

Jacek Semaniak

Jacek Semaniak: key obituary facts

Is Jacek Semaniak dead? Yes. Jacek Semaniak died on December 12, 2025, at age 61.

Cause of death: Jacek Semaniak's cause of death has not been publicly confirmed.

What was Jacek Semaniak known for?

He was known as Polish physicist.

Jacek Semaniak

Polish physicist

Died on Friday December 12th 2025

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