Help the spaceship's AI complete its critical safety report for the captain by dragging the correct condition clauses into the blanks.

Warning: The main engines will overheat if we maintain this excessive velocity for another hour.

Life support systems will remain completely stable provided that the external solar panels continue to receive direct starlight.

We must not open the outer airlock unless all crew members are safely secured in their pressure suits.

Warning: The main engines will overheat if we maintain this excessive velocity for another hour.

"If" introduces the condition that will cause the negative outcome (overheating). "Unless" would illogically mean the engines overheat only when they stop maintaining the velocity.

Life support systems will remain completely stable provided that the external solar panels continue to receive direct starlight.

"Provided that" means "as long as" or "on the condition that." It emphasizes that stability depends entirely on the solar panels getting light.

We must not open the outer airlock unless all crew members are safely secured in their pressure suits.

"Unless" means "except if." The airlock must stay closed except in the situation where everyone is secured.