In the eastern Utah desert, carbon-dioxide-saturated water bubbles, sprays and foams from the ground. These cold-water geysers, sometimes called soda pop geysers, are a new and reliable Earth-based ...

Water is made of hydrogen and oxygen, and sometimes these atoms are slightly heavier than usual. These heavier forms are ...

Tiny zircon crystals are revealing that Earth’s earliest history may have included surprisingly complex tectonic activity.

Scientists have long debated whether most of Earth's vital liquid was delivered via icy comets or was homemade ...

"You need so much water that we think these could be evidence of an ancient warmer and wetter climate where there was rain falling for millions of years." ...

A planet that looks faintly familiar has emerged from old space telescope data, though it may be far from welcoming.

A northern summer dust storm on Mars boosted high-altitude water escape, suggesting short-lived events may play a bigger role ...

Ancient enzymes show life’s nitrogen signal stayed unchanged for billions of years, helping scientists read early Earth.

The 748-foot-long sediment core contains a record of roughly the past 23 million years, including periods when the planet's surface temperature was hotter than it is today ...

The Rev. Jesse Jackson, America’s most influential Black figure in the years between the civil rights crusades of the Rev. Dr ...

In San Bernardino County, gold and silver mining companies are pushing to expand.

PHOENIX — As water flows steadily through a Central Arizona Project canal, it’s easy to forget just how much effort it takes to get it there, and how much uncertainty now surrounds its future. Brenda ...