6. This happens either on … The beginning of Fall generally falls between September 21 and September 23 depending on the year. The unofficial end of the summer season and the beginning of the Fall season is when the children go back to school. Fall is the season between Summer and Winter. In Greek mythology, autumn was a time when Persephone, the daughter of Demeter, was abducted by Hades, the god-king of the underworld. There are two different dates when autumn could be said to begin. You may be surprised to learn the following facts about autumn leaves: Leaves require sunlight, water, chlorophyll and carbon dioxide to make food for themselves. 2. During the fall season, the geomagnetic storms are twice bigger than the other seasons. The … However, for the purposes of recording climate data, it is … ©iStockphoto.com/Givaga. Autumnal equinox. 1. Facts about Autumn 1: aurora season. Fall or Autumn is one of the four seasons. The four seasons are Winter, Spring, Summer, and Fall. Come autumn, however, when the sun weakens and days grow shorter, the amount of chlorophyll in leaves diminishes, allowing the other pigments in the leaves to show through. Different year, different day. September is North's fall equinox. The September equinox is on or around September 22, while the first equinox of the year, the March Equinox, takes place on or around March 21 every year. As fall foliage creates a colorful display and kids frolic in leaf piles on the lawn, you may want to pay some mind to a few lesser known facts about this beloved time of year. The first day of Autumn is at the end of September. This day is known as the fall equinox. We look at the answers to these and more interesting facts. Autumn begins. The autumnal equinox typically takes place on the 22nd or 23rd of September, but there are some exceptions. Second Equinox of the Year. Autumn is another word used for Fall. 2. Get facts about auroras here. On this day, the number of hours of daylight and darkness are equal. Red and purple leaves are actually caused by the presence of sugars from sap that is trapped inside of the leaves. The last day of Autumn falls on December 21 to … On this day the amount of sun and the amount of night are equal, which is the same as the Spring equinox. Fall is the term most often used to reference the season succeeding summer in the United States. Fall is a peak migration time for many species of birds. NASA has they own opinion about autumn. 1. 5. As winter approaches, leaves make a coating for themselves which blocks their water source; in the absence of water, the leaves no longer produce chlorophyll (chlorophyll is what makes leaves green). The September equinox occurs the moment the sun crosses the celestial equator – the imaginary line in the sky above the Earth’s equator – from north to south. Interesting facts about Autumn: 1. 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