Millions of California residents are being warned to avoid sun exposure as an extreme heat wave is expected for much of the ...

An extreme heat watch has been issued for parts of southern Nevada and eastern California later this week as the region ...

WASHINGTON (AP) — Get ready for several years of even more record-breaking heat that pushes Earth to more deadly, fiery and ...

From the shores of the Atlantic Ocean to the deserts of the Southwest, here are the hottest cities to live in across the ...

The next time you see the UV index in the weather forecast, look more closely. You can protect yourself from too much sun.

The sun's corona—the outermost layer of its atmosphere, visible only during a total solar eclipse—has long intrigued ...

Nasa is warning of extreme space weather that could cause blackouts across the planet, as the Sun's hottest region is to turn ...

The world’s first-ever emergency drill testing preparedness for extreme space weather suggests humans are not ready to ...

Walking during the middle of the day, however, can be less than utterly hellish if one sticks to the shady side of the street ...