It's almost time to fall into fall, though in many parts of the country, it feels like we're already there. There are ...

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

On Sept. 22, the fall equinox formally heralds in autumn and marks the end of summer in the Northern Hemisphere.

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 ...

Twice a year, the sun doesn’t play favorites. Everyone on Earth is seemingly on equal status – at least when it comes to the ...

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 ...

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 ...

Equinoxes occur twice a year, around March 21st (the vernal or spring equinox) and around September 23rd (the autumnal equinox). During these times, day and night are nearly equal in length due to ...

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 ...