Both UVA and UVB rays can damage your skin, just in different ways. One causes premature aging, the other is more prone to causing sunburn, DNA damage, and skin cancer.

The sun is different and does not have a fire triangle. NASA says the Sun is a huge ball of hydrogen and helium held together by its own gravity. There is no oxygen, so the sun is not really on fire!

Quick primer: the sun emits three types of ultraviolet radiation: UVA, UVB, and UVC rays. UVA rays are what tan—and ultimately age—your skin, UVB rays cause your skin to burn, and UVC rays ...

Ultraviolet rays from the sun can age your skin, or worse, if you are not careful.

UVA rays ruin collagen and elastin, the fibres that cause your skin to be firm and smooth. Collagen and elastin damage contribute to wrinkles, sagging, and age spots.

Knowing what SPF and other terms on sunscreen labels stand for helps you get the best sun protection, Consumer Reports says.

Rumors continued Wednesday about the future of the historic Sun-Ray Cinema building in 5 Points. How does historic designation protect it?

Scientists have detected the sun emitting an extraordinary amount of gamma rays — light wavelengths known to carry the most energy of any other wavelength in the electromagnetic spectrum.

The sun’s rays cause the majority of skin changes as you grow older. Here’s how sunscreen helps prevent the damage.

Scientists have discovered that the Sun produces higher energy light than was thought possible. An unusual type of telescope detected gamma rays with energies of over 1 tera electron volt (TeV ...

As many as 60,000 people a year die from too much sun, warns the World Health Organization. The bulk of the deaths are from skin cancers caused by excess exposure to the sun's harmful rays, ...