The Texas floods have left many wondering why bad things happen to good people. The question has echoed through generations, challenging both faith and reason.

On Earth, water is so intertwined with life that our search for life on other worlds is essentially a search for water. When ...

We often think of sunlight as something that warms us, helps plants grow, or gives us a summer glow. But according to Dr.

Grades 9-12 Learn about the cause of sunburns, in this video from NOVA’s Gross Science series. Sunlight is made up of many types of radiation: infrared, visible, and ultraviolet (UV). UV radiation can ...

Did you know low vitamin D levels are linked to depression and anxiety? With summer sun in full swing, it’s the perfect ...

Sun-protective clothing provides consistent UV protection with UPF ratings up to 50+, unlike sunscreen, which can wear off.

According to Skin Cancer Foundation, window glass blocks most UVB rays but allows at least 50% of UVA rays to pass through.

For most people, LED masks are safe, but you’ll want to talk to a dermatologist first if you have an existing skin condition. These light therapy devices have the potential to smooth wrinkles ...

Red light therapy doesn’t hurt or burn the skin, nor does it expose the user to UV rays. Research shows that red light therapy, when used correctly, can help in smoothing skin, improving elasticity, ...

Find out how solar cells power a good portion of homes today—and how they might power almost everything in the future.