Images of soldiers sweeping through a compound in the dead of the night have frequented national news for decades. American soldiers dominate the night thanks to night vision goggles — but that ...

During the day, the human eye holds a distinct advantage over those of other animals in terms of its ability to spot small movements, pick up subtle shades of color, and identify shapes at great ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." In the daytime, the human eye holds a distinct advantage over those of other animals in terms of its ...