It's the time of year for sun poisoning. In most parts of the country, going outside during peak summer feels like stepping into a sauna. Braving the heat for a cookout, tennis match, or just to ...

The reversal could actually have a beneficial effect on Earth. The sun is on the verge of a significant event: a magnetic field reversal. The sun undergoes such a reversal every 11 years ...

Sunburns typically appear 3 to 5 hours after sun exposure, peaking within 24 hours and fading within about 48 hours. In severe cases, healing may take up to 2 weeks. A sunburn is skin damage ...