Tanning happens when your skin is exposed to UV radiation — here's how you should prepare to safely face the sun.

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 ...

If you've spent all day at the beach or on the ski slopes, the sun can reflect off the water or the snow and sunburn your ...

A new NASA-backed study—relying on data from the Clouds and the Earth’s Radiant Energy System (CERES) satellite—suggests that ...

The best skincare products for anti-aging include ceramides and green tea, which help maintain collagen and fight the damage ...

A powerful and worrying event is taking place on the surface of the Sun. A highly active region, known as Sunspot AR4087, is shooting out some of the most intense solar explosions seen in recent times ...

SYRACUSE, N.Y. — The sun makes a big difference in the temperature, if you have a thermometer in the sun versus shade. Plus, surfaces make a difference, especially if you are in a city versus the ...

NASA launched the Interstellar Mapping and Acceleration Probe (IMAP) spacecraft from Kennedy Space Center in Florida on Wednesday, September 24.