In the Northern Hemisphere, we celebrate the first day of spring on the vernal equinox. This year ... (See? Sharing spring quotes and jokes aren't the only ways to wish someone well for the new season ...

During an equinox, places around the globe experience nearly equal amounts of daytime and nighttime. The second occurrence ...

If you get up early enough, you can experience an equinox sunrise. The autumnal equinox heralds the arrival of fall in the northern hemisphere.

The equinox has no relationship to Houston’s weather, and the city’s climate afterwards isn’t guaranteed to bring cooler or ...

and spring in the Southern. At that moment, the sun would be shining directly overhead as seen from a point in the equatorial Atlantic Ocean, 461 miles (743 km) south-southwest of Monrovia, Liberia.

There are specific times when the astronomical seasons officially turn over -- for fall, it's the autumnal equinox. For spring, it's the vernal equinox. Fall equinox in the Northern Hemisphere ...

The official start to the fall season, the autumnal equinox, occurs on Sunday, Sept. 22. What exactly happens during the ...

PM IST, the September equinox will occur, marking a significant astronomical event. This moment signals the Sun's crossing of ...

Autumn officially begins today! It’s apparent in the crisp dawn air and the rapidly shifting leaf colors. I saw my breath ...

while the vernal equinox marks the start of spring. The apparent equal hours of daylight and darkness result from the refraction of sunlight, or the bending of light's rays, the National ...

Another 89 days later, the spring or vernal equinox will occur. Then it's another 93 days and 18 hours to the summer solstice — when the most direct rays of the sun reach their northernmost ...