A March 3 Instagram post (direct link, archive link) displays several images of humans and the sun. "Being ‘burned’ is a mindset," reads the post's text. "The sun does NOT cause skin cancer." It was ...

The UV index measures the intensity of skin-damaging ultraviolet radiation at the Earth's surface. The UV index ranges from 0 to 11-plus, with higher values indicating greater risk of sunburn and skin ...

Ultraviolet radiation, a high-frequency form of energy from the sun, is classified in the same risk category as X-rays and nuclear radiation. As temperatures and sun exposure increase, experts at the ...

Weather forecasts usually include a UV index, a measure of the intensity of ultraviolet radiation from the sun. The higher the number, the greater the risk to people. Most of the radiation that ...

In physics, electromagnetic radiation (EMR) consists of waves of the electromagnetic (EM) field, propagating through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves ...