NASA is working to reestablish communication with MAVEN, the space agency’s decade-old Mars orbiter, after it suddenly lost contact with Earth this week. In an update Tuesday, NASA said ground ...

Millions brace for 'mother lode' of cold air, but a change is in sight for central, eastern US Arctic air, rivaling the lowest temperatures of the polar vortex episode in recent weeks, will grip the ...

A series of atmospheric rivers has caused days of heavy rain in the Pacific Northwest, with some locations getting as much as a foot of rain — and AccuWeather meteorologists say it isn't over yet.

Firefighters in New Hampshire responded to Canobie Lake to rescue a dog that wandered out onto the ice and fell through into the frigid water.

Editor's note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. (CNN) — The Hubble Space Telescope and ...

More than a foot above average snow in the Midwest Residents in parts of the Midwest, from Dubuque, Iowa, through Chicago, Illinois, have seen snowfall totals running more than a foot above the ...

Will cold clipper storms finally bring snow to NYC, Philly and Boston? Chicago, Detroit, Des Moines, Iowa, and even Richmond, Virginia, have picked up accumulating snow so far this year--but when will ...

The snow will fall on areas that received snow and experienced wintry travel late last week. The heaviest snow is forecast to fall over the southwestern part of Virginia to northwestern North Carolina ...

Northern lights forecast: Aurora could be visible across northern U.S. Tuesday after solar eruptions A strong geomagnetic storm forecast by NOAA’s Space Weather Prediction Center could make the aurora ...

Back-to-back atmospheric rivers to unleash major flooding in western Washington, Oregon A pair of atmospheric rivers will unleash many inches of rain and trigger major flooding in parts of western ...

A 7.6-magnitude earthquake struck offshore from Japan Monday, triggering tsunami warnings for the immediate coasts.

A high-traffic “dinosaur freeway” may have once stretched across a shoreline in what is now Bolivia. Paleontologists have now described their tracks for the first time, offering a rare glimpse into ...