Except when we fly, or see rockets and missiles, we mostly ignore the air we breathe. But when the air becomes poisoned with ...

Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...

A good estimation of the cloud tops is like the finest gold, especially for pilots flying under IFR during the winter months.

Weakening or rolling back longstanding environmental regulations would worsen the problem, the American Lung Association ...