BATON ROUGE, La. (Louisiana First) — Fall officially begins as our planet's poles become perfectly aligned on Monday, Sept. 22, specifically at 1:19 p.m. On this day, we will have 12 hours of daylight and 12 hours of nighttime.

The equinox only happens twice a year, in the fall and the spring. It's easiest to think of those two seasons as a time of transition, both literally and metaphorically. In this case, fall is the transition of the northern hemisphere moving away from the sun; the opposite occurs in the southern hemisphere.

It is due to Earth's tilt that we have seasons at all in the first place. The differences in solar radiation and day length have major impacts on the atmosphere and general weather conditions.

Now, this isn't something we can see with our own eyes, unless we us

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