Here are some of the reasons why aircraft can catastrophically veer toward the ground like a medevac jet did in Philadelphia on Friday night.

At least seven people were killed and 19 were injured when an air ambulance crashed to the ground in a busy Philadelphia neighborhood, The dead from Friday's accident include a ...

Near zero chance of rain elsewhere. The chance of a thunderstorm in the afternoon and early evening. Winds northeast to southeasterly 15 to 20 km/h tending northwest to northeasterly in the morning ...