Even small sunspots are visible through this nice beginner solar telescope, which can also be used for nighttime astronomy. The telescope is lightweight and portable, but the quality of the focus ...

Michigan is experiencing frigid temperatures and heavy snow due to a dip in the jet stream, not the polar vortex. The polar vortex is a large-scale cyclone of cold air that typically stays far north ...

With over 170 million Americans facing below-average temperatures, even colder air may be on the horizon thanks to the displacement of the polar vortex that will lock in the feel of winter and park ...

This story has been edited to correct an error. Judah Cohen is affiliated with the Massachusetts Institute of Technology. Our old wintertime friend the polar vortex ...

A forecast map reveals which states can expect to see "persistent cold" in the weeks ahead, after experts said the polar vortex would unleash waves of icy air across parts of the U.S. through January.

Forecasters say that the polar vortex will usher in waves of frigid air across parts of the U.S. through January. The "more active polar vortex will drive colder air and snow across the central and ...

USCGC Polar Star (WAGB-10) enjoys ice liberty while the cutter sits hove-to in McMurdo Sound during Operation Deep Freeze, Jan. 7, 2025. US Coast Guard photo The U.S. Coast Guard’s only heavy ...

Did a Whatcom County community break a polar bear plunge world record? Thousands of people gathered in Blaine on New Year’s Day for the Birch Bay Polar Bear Dip, braving the icy waters of Birch Bay in ...

KENNEDY SPACE CENTER — As SpaceX launched the four-person crew of the Fram2 mission on Monday night, it was a takeoff for the history books as they will be the first humans to ever orbit Earth’s polar ...

With the city starting to feel true winter weather, organizers announced on Wednesday that registration for the 2026 Polar Plunge Chicago is officially open. The annual event helps raise money ...

A blast of Arctic air is expected to bring a sharp temperature drop to Florida this week. Freeze watches have been issued for 53 of Florida's 67 counties ahead of the cold front. The cold snap is ...

No matter the temperature, the challenge of a plunge into icy water for a good cause is enough to get swimmers suited up this winter. Register in advance and don't look back. Those who want to avoid ...