The death of a British man and injuries impacting dozens of others on a Singapore Airlines flight that hit severe turbulence Tuesday is the latest incident to spotlight the potential dangers of flying through unstable air.

What is turbulence, and when does it become dangerous for air travelers and crews?

The death of a British man and injuries impacting dozens of others on a Singapore Airlines flight that hit severe turbulence Tuesday is the latest incident to spotlight the potential dangers of flying through unstable air.
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