Repair shops for broken DNA

A stray bullet rips through the command center, blowing holes in vital equipment and damaging the data archives. Repair teams spring into action. The damage must be patched up quickly or the control systems could go haywire. It's literally a matter of life or death, and a decision must be made: try to fix the damage in place, or move the broken parts to the repair shop.

This is a drama that unfolds every day in the microscopic world inside the cells of astronauts.

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