Billions of years ago, water flowed on the surface of Mars. But scientists have an incomplete picture of how the red planet's water cycle worked. That could soon change: Two graduate students at ...

Humanity has thrown the global water cycle off balance “for the first time in human history,” fueling a growing water disaster that will wreak havoc on economies, food production and lives ...

Here’s what experts say. Water constantly moves between the Earth and its atmosphere. But that system — called the hydrological cycle — is speeding up as global temperatures get hotter ...

But scientists have an incomplete picture of how the Red Planet’s water cycle worked. That could soon change after two graduate students at The University of Texas at Austin filled a large gap ...