Cold air from the arctic sometimes dips southward across the American plains. What to know about the polar vortex.

The Earth’s magnetic field is a dynamic force that plays a crucial role in various aspects of our lives, including navigation systems and the planet’s overall geomagnetic stability. Recent ...

Discover the fascinating story of Söderfjärden, a meteorite crater in Finland that has witnessed dramatic transformations ...

A massive geomagnetic storm could make the Northern Lights visible across wide swaths of the northern United States, but there’s a big catch in the Chicago area.

They are also the phenomena responsible for the enhanced Aurora Borealis in the Northern Hemisphere or Aurora Australis in the Southern Hemisphere." ...

Small British businesses have stopped selling to Northern Ireland as well as Europe due to extra administrative hurdles posed by new EU customs rules coming into effect. Many small firms said they ...

(Stephen Lam/San Francisco Chronicle via AP, File) The winter solstice is Saturday, bringing the shortest day and longest night of the year to the Northern Hemisphere — ideal conditions for ...

More information: Joonsuk M. Kang et al, Anthropogenic Aerosols Have Significantly Weakened the Regional Summertime Circulation in the Northern Hemisphere During the Satellite Era, AGU Advances ...

U.S.-backed, Kurdish-led forces say they have come under fresh attack in several places by a Turkish-backed militia, even as Washington seeks a lasting cease-fire. By Lara Jakes and Eric Schmitt ...

(Stephen Lam/San Francisco Chronicle via AP, File) Updated [hour]:[minute] [AMPM] [timezone], [monthFull] [day], [year] The winter solstice is Saturday, bringing the shortest day and longest night of ...

Diane Delano, an American actor best known for her roles in “Northern Exposure” and “The Wicker Man,” has died. She was 67. Delano died on Friday night after a battle with a brief illness ...

Earth received a direct hit from a mass of charged particles from the sun last night, which cause displays of the Northern Lights. Although forecasters had warned of a mild display of aurora ...