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 ...

Scientists say 4 billion people experienced at least one extra month of extreme heat because of human-caused climate change ...

Aurora conditions may be strong enough over the next few nights that the norther lights could be seen visually and with cameras. Here’s when to look up and gaze at the sky.

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

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

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

An Extreme Heat Warning is in effect from 9 a.m. Friday until 11 p.m. Saturday as highs hit 104° and Southern Nevada sees its first "major" heat risk of the year.

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

The National Weather Service released its outlook for the 2025 monsoon to give you an idea of what to expect as summer approaches.