Fallstreak holes, also called cavum, sometimes occur when airplanes fly through certain clouds high in the atmosphere.

Miguel Claro took one last look at the comet as it bid farewell to Earth for the next 80,000 years.

Seattle Art Museum's newest commission has visitors cloud gazing inside their lobby. The large-scale installation that ...

The collapse of the skywalks at Kansas City’s Hyatt Regency Hotel in 1981 remains one of the nation’s worst engineering ...