Bye’s electric twin; In-orbit debris monitoring; New LEO use; Decarbonizing Europe’s skies; and Furanics for SAF.

Ask the Editors: Flight crews favor vaccination, but requirements depend on airline policies and local laws, which are changing quickly.

Repairs to in-service, stored aircraft likely.

Power unit glitch forces new MAX groundings and adds to quality control woes. But is it a storm in a teacup? Listen in as Aviation Week’s editors analyze Boeing’s latest challenge.

As the pandemic’s impact seems clearer, updated cost-benefit analysis supports acceleration of air traffic management upgrade in Europe.