Stratospheric polar vortex changes still trigger brutal U.S. winter cold snaps and extreme weather despite a warming climate.

Despite a warming climate, bone-chilling winter cold can grip parts of the U.S. In a study appearing in Science Advances, ...

NEW YORK– "Manhattanhenge" is back this weekend for the second and final time this year at sunset. Manhattanhenge happens ...

The August full moon, known as the sturgeon moon, will be visible on Aug. 9, 2025. Winter solstice 2025, which marks the start of winter in the Northern Hemisphere, will occur on Sunday, Dec. 21, 2025 ...

When is the next full moon? Here's what to know about tonight's moon phase and the meaning of July's buck moon ...

On July 9 — and two other upcoming dates — the moon will be at its maximum distance from the equator, Timeanddate.com notes.

Planet Earth will spin a little faster on three separate days this summer, starting today. This will technically result in ...

Over 6,000 years old and still a site for worship, Stonehenge remains a unique place. As the first rays of the sun shine into ...

People are marking the start of the winter and summer solstices across the globe. North of the equator, celebrations welcome ...

From Stone Age astronomy to Viking law and Roman goddesses, cultures across time have honored the longest day of the year ...

the upper half of the earth is tilted toward the sun, creating the longest day and shortest night of the year. This solstice falls between June 20 and 22. Meanwhile, at the winter solstice, the ...

Since the solstice occurs so late at night Philly time, is the longest day the 20th or the 21st? The answer: Both. The ...