Delta plans to test a new fuel-efficient flying technique that takes inspiration from the “V” shaped flight pattern of ...

The constant V-formations of flying ... pattern on the upper rump and dark speckles across their bellies, earning them the nickname “specklebellies.” Great flocks of snow geese migrate to ...

Planes mimicking migrating geese to save energy. Aviation fuel made of cooking oil or downed timber waste. Aircraft wings that can change shape during flight to maximize efficiency. These are some of ...