The heat is on this weekend! Highs will soar into the mid to upper 90s today, nearing record highs by the afternoon.

New images reveal that the strange Martian stripes on the slopes are formed by avalanches of dry dust, not liquid water.

After three days of heat advisories, Florida will find respite from the heat in the wet embrace of a "tropical rainstorm." ...

For decades, scientists believed water was the essential cradle for life. But new research suggests life’s building blocks ...

Last July, it seemed like Phoenix broke another heat record every day. This year, temperatures are average (but it's still ...

Every fortress in Bhutan hosts an annual festival, and the time is coming for the Paro Tschechu festival of the Rinpung Dzong — the massive, ancient fortress and monastery of Paro. The men are ...

Meadowlarks, robins and vesper sparrows greeted the dawn, each exhalation of their voices adding a quantum of mist to that in the valleys. Cattle mooed off in the distance. A farm dog barked and a ...

A July hike at Salt Creek Falls, Oregon, in the Willamette National Forest offers 1,600 feet of elevation gain, waterfalls ...

Severe weather including high winds Friday, July 11 dumped enough rain in parts of Southwest Wisconsin to change the year’s ...

So what exactly is a heat dome, and why does it last so long? And what gives with all the extra moisture?

Sea stars may look like they're cuddling, but these underwater gatherings serve surprising survival and reproductive purposes ...