The autumn equinox is now upon us! Today marks the moment that the sun crosses the celestial equator, ushering in the beginning of astronomical autumn in the northern hemisphere, which brings with it ...

Here's what happens as the direct rays of the sun slip south of the equator as the seasons change. When is the first day of fall in 2025? A carefully worded answer is that on Monday, Sept. 22, at 2:19 ...

The Pentagon’s top national security focus will mirror that of President Donald Trump’s “America First” agenda, with a focus on protecting the homeland and the Western Hemisphere, U.S. officials told ...

If you’ve ever wanted to see a chunk of the early solar system with your own eyes, now’s your chance. The comet C/2025 A6, ...

Day and night will get equal time for a brief moment Monday as much of the world heads into fall. The autumnal equinox arrives Monday, marking the start of the fall season for the Northern Hemisphere ...

Over the past 40 years, atmospheric rivers carrying moisture from the tropics have migrated between 6 and 10 degrees closer ...

Multiple inches of snow are expected in Colorado’s high-elevation mountains early this week, according to the National Weather Service. The most impactful winter weather will hit elevations above ...

Day and night will get equal time for a brief moment Monday as much of the world heads into fall. The autumnal equinox marks the start of the fall season for the Northern Hemisphere and the spring in ...

A coastal storm south of New Hampshire will send bring cool, damp and breezy conditions today and tonight. Cool fall temperatures and periods of gusty winds then continue through much of next week.

Wherever you are on the planet the equinox occurs at the same moment and this year that will be on Monday 22 September at 19:19 BST. It's when the Earth's axis lies perpendicular to the Sun, making ...

Sky-gazers should get ready for a full day of celestial events on Sunday, including a partial solar eclipse in parts of the Southern Hemisphere. The partial solar eclipse will peak, the point at which ...

Autumn doesn’t boldly announce its presence but rather creeps in. Since schools are back in session in August and early September, many who consider these last few weeks to be the beginning of fall ...