If you've been outside shortly after sunset this month, it's likely that you've noticed one, and possibly two, bright points of light in the sky. Are they UFOs? The North Star or the Dog Star?

Learn more› By Kaitlyn Wells and Zoe Vanderweide If you believe the hype, blue-light blocking glasses will prevent headaches, decrease eyestrain, and help you sleep like a baby. But do they work?

Another is to grow cells in single-use reactors, which is wasteful. Ultraviolet (UV) light is another. Yet until recently, generating enough UV-C light, which is required for decontamination ...

Ultraviolet (UV) radiation is a type of light. Sunlight has UV rays, along with other kinds of rays. Some light bulbs give off UV rays, too. UV light bulbs are used in tanning beds and lamps, some ...

28 American Entities Added to Restricted List, Including Major Aerospace and Defense Firms On January 2, 2025, China’s Ministry of Commerce announced the addition of 28 US entities to its export ...