Earth’s Fall Equinox Ushers In Astronomical Autumn During an equinox, places around the globe experience nearly equal amounts of daytime and nighttime.

A diagram depicting the fall equinox, one of only two times when the Earth’s axis is tilted neither toward nor away from the sun. NWS Boulder “In summer or winter, one of the Earth’s poles ...

The sunspot AR3835 erupted on Sunday (Sept. 22) during Earth's equinox when even a glancing blow can cause a geomagnetic storm.

The autumnal (or fall) equinox is the halfway point between the summer and winter solstices and marks the precise moment when the sun appears directly over the Earth’s equator.

The spring equinox is here. What does that mean? The solstices mark the times during the year when the Earth is at its most extreme tilt toward or away from the sun.

The 2022 autumnal equinox for the Northern Hemisphere is on September 22 at 9:04 pm EDT. At this time, unlike during the solstices, Earth is tilted neither toward nor away from the sun.

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 hours of darkness almost ...

The spring equinox takes place on March 20, 2023. Here's how Earth and the sun align to cause the celestial event, and what it means.

The Spring Equinox marks the start of longer days and renewal, celebrated across cultures for balance, growth, and the natural rhythms of life.

Why the equinox ushers in the arrival of spring Every six months, the equinox splits Earth's day almost in half. Here's how it happens—and why people have celebrated it since ancient times.

Equinoxes would be physically impossible over a flat Earth, but that doesn't stop conspiracy theorists from trying to explain them.

A diagram depicting the fall equinox, one of only two times when the Earth's axis is tilted neither toward or away from the sun.© NWS Boulder ...