Understanding green's position in the spectrum of visual light is required to understand how night vision goggles work.

The US Army has selected three vendors to boost the service's night vision system into the 21st century by replacing the legacy system from over 20 years ago with the next-generation Binocular Night ...

Contrary to popular belief, most property crimes—including burglaries and package theft—happen during the day, not under cover of darkness. But night still brings unique challenges: fewer people ...