Canadian wildfire smoke causes dangerous air quality in 12 Midwest states. Health alerts urge 22 million residents to stay ...

In this video, we explore the Soviet supersonic passenger jet, the Tu-144, and compare it to the British Concorde. - **0:00** The Communist Concorde - **1:28** Reasons behind the Soviet development of ...

A fast-moving wildfire destroyed a historic lodge and dozens of other structures on the Grand Canyon’s North Rim. Arizona Governor Katie Hobbs called on the federal government to investigate the ...