“Blue Origin’s tourism rocket has launched passengers to the edge of space for the first time in nearly two years, ending a hiatus prompted by a failed uncrewed test flight…

The Federal Aviation Administration, which licenses commercial rocket launches and is charged with ensuring public safety, oversaw an investigation into the failure. The probe revealed that the engine nozzle failed because it experienced higher temperatures than what the company had anticipated.

To fix the issue, Blue Origin said it implemented ‘design changes to the combustion chamber’ — the area of the engine where fuel explosively mixes with oxidizer — and adjusted ‘operating parameters,’ or the data that the company uses to model safe flights.”

From CNN.