Let's separate fact from fiction when it comes to the fall equinox, happening this year on September 22 or 23, depending on where you are. (In the U.S. and Canada, it will take place on the 22nd).
The term "equinox" is not interchangeable with the term "solstice." There are two of each every year. An equinox, however, happens when the sun passes directly over the equator. A solstice is when one pole of the Earth is as close to the sun as it can be, while the other pole is as far away as possible. Both types are related to the Earth's tilted axis.