What would make a deep elongated metal vibrating sound of thunder? Twice on Monday August 29 my husband and I heard this strange sound coming from the sky that appeared to be a type of thunder and ...

A bolt of lightning heats the air through which it travels practically instantaneously to about 50,000 degrees F. Such extreme heating causes explosive expansion of the air followed by rapid cooling ...

Thousands of American veterans are part of Rolling Thunder, riding their motorcycles into Washington, D.C., to congregate at the Vietnam Veterans Memorial. They're remembering prisoners of war and ...