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Sierra Space has appointed Dan Jablonsky as CEO, effective March 2, 2026, as the company aims for growth in national security and commercial space markets. Founder Fatih Ozmen will continue as chairman.

Jablonsky has a background in aerospace and defense, having served as a surface warfare officer and nuclear engineer in the U.S. Navy. He holds a bachelor's degree in mechanical engineering and a law degree. Jablonsky plans to enhance operational execution and performance while delivering critical capabilities to clients.