Man’s ability to restore sperm after testicular tissue transplant: what scientists think0

• SCIENCE, Science / Health, Science Mission Directorate, scientists, Space, Space Communications & Navigation Program, Space Launch System (SLS), Space Telescope, space-x-ipo, SpaceX
• July 18, 2026

Developing sperm (blue; artificially colored) fill the center of the seminiferous tubules (orange), which form the human testicle.Credit: Susumu Nishinaga/Scientific Photo Library A cutting-edge operation has restored a man’s ability to produce sperm by transplanting tissue samples that were removed from one of his testicles and frozen 16 years earlier, when he was still a