Sept. 22, day and night will be nearly equal in length as Earth spins side-on to the sun and autumn officially begins in the ...

Because Earth moves in an elliptical orbit around the sun, being further away means it travels slower along its orbit. This ...

The first day of autumn, caused by the fall equinox, happens on Sunday, September 22, 2024. The equinox happens when the sun's rays square up with Earth so the day is about as long as night. From ...

Earth’s ‘twilight zone’ runs exactly north to south during the equinox. The line dividing day and night on a planet’s surface is called a terminator, and on most days, Earth’s is slanted ...

Earth isn’t the only planet that experiences equinoxes: Every planet in our solar system has them. In 2009, the Cassini probe in orbit around Saturn captured an equinox on the ringed planet .

As the Earth glides along its path around the Sun, due to its tilt, our glowing orb rises and falls in the sky and its ...

Fall equinox explained: How Earth's tilt and orbit define our seasons. Story by Meteorologist Emily Santom, WGME • 8mo. PORTLAND (WGME) --In case you missed it, Sunday was the first day of autumn.

The vernal equinox signals the astronomical start of spring in the Northern Hemisphere, with the sun crossing above Earth's equator, moving from south to north, at 5:01 a.m. EST (0901 GMT) on ...

An equinox occurs twice a year. The autumnal equinox occurs in September – when the Earth's axis is tilted neither toward nor away from the sun, resulting in roughly 12 hours of daylight and 12 ...

During the equinox, the Earth’s axis and its orbit line up so that both hemispheres get an equal amount of sunlight. The word equinox comes from two Latin words meaning equal and night.

The Earth is not tilted toward or away from the sun on the first day of fall as well, also called the autumnal equinox. On both equinoxes , the sun is exactly above the equator.

Earth’s fall equinox ushers in astronomical autumn Sept. 21, 2024 Updated Sat., Sept. 21, 2024 at 9:21 p.m. A woman dances as druids, pagans and revellers gather at Stonehenge, hoping to see the ...