Ready for sweater weather? Read on for surprising facts about the first day of fall, aka apple-picking and leaf-peeping ...

The first official day of summertime barbeque grills, diving into a nearby swimming pool and complaining about Indiana's ...

equinox can fall between March 19 and 21 while the fall equinox hits sometime between September 21 and 24. What’s a solstice, then? Solstices mark the extreme points in Earth’s tilt.

This June is filled with celestial events you won’t want to miss. The summer equinox, the Strawberry full moon, and a meteor ...

An equinox happens when the sun's rays are directly over the equator, resulting in approximately equal hours of daylight and darkness worldwide. The summer solstice, the longest day of the year ...

As you prepare for summer activities, here's everything you should know about the upcoming first day of the season.

An equinox occurs twice a year ... The longest day of the year is the summer solstice. What is the shortest day of the year? The shortest day of the year is the winter solstice.

The vernal equinox marks the astronomical first day ... respectively. The summer solstice is considered the first day of summer and the winter solstice is considered the first day of winter.

After the vernal equinox in March, the Northern Hemisphere tilts toward the sun until the June solstice, when the sun begins to migrate back south. At precisely 5:01 a.m. ET on Thursday ...

The shortest day of the year is approaching – here's everything you need to know about the winter solstice in Sydney.

During the equinox, the Earth’s axis and its orbit ... During the Northern Hemisphere’s summer solstice, the upper half of the earth is tilted in toward the sun, creating the longest day ...