Noctilucent cloud season is upon us. If you’re in the Northern Hemisphere this summer, keep your head to the skies at sunset ...

Full-sun days will soon be the regular forecast in Michigan. To prepare, here's a breakdown of the UV index and how soon you could get a sunburn.

You get to feel comfortable under the night ... when it’s behind a cloud—a sight so familiar that when little kids draw the sun, they usually depict it emanating rays of light.

From sunscreen to shade, these easy strategies help prevent sunburn, premature aging and skin cancer all season long ...

Ultraviolet (UV) radiation might be invisible, but its damage is not. From sunburns to pigmentation and fine lines to deadly skin cancers, the sun's rays are responsible for some of the most ...

high-altitude clouds that glow with a blue, silvery hue at dusk or dawn when the sun shines on them from below the horizon. These ice clouds typically occur near the North and South Poles ...