Unusually Red or Purple Sunsets and Sunrises One of the most enchanting sights in nature is a vividly red or purple sky ...

When a hurricane or tornado starts to form, your local weather forecasters can quickly pull up maps tracking its movement and ...

A new study finds that ocean acidity may have prevented life on Earth from developing for the planet’s first 500 million ...

Revolutionary technique allows astronomers to capture incredibly high-resolution images of distant galaxies and supermassive black holes.

The iridescent cloud reveals new clues about ice formation in the Martian atmosphere (no little green men, sorry).

A private company couldn't match the Boulder-based federal agency's work...but scientists worry the Trump administration could propose just that.

New towers have already brought tens of thousands of residents to river shorelines in Williamsburg, Greenpoint, Long Island ...

ENSO-neutral conditions are expected to emerge in the Pacific Ocean sometime soon. Here's what it means for weather in the U.S.

As an atmospheric river continues to funnel moisture into Colorado, sizeable snowfall totals at the state's ski areas are ...

Water on the Sacramento River was moving fast in February, the result of rains from atmospheric rivers and increased water ...

Snow is made up of trillions of tiny ice crystals to make snowflakes, with not one alike. Here's how they form.

The moisture bringing feet of snow to the Rocky Mountains through Saturday is being driven by a weather pattern called the ...