The sun rises in the east each day in our western slope skies and appears to shine with constant brightness. However, we shouldn’t take the sun for granted, because the sun’s energy sustains most life on Earth. And, in this age of widespread, complex technology, the sun can impact our daily lives.
The sun, in fact, is not constant, and we need to pay attention to our active, local star.
Do you know when the Earth is nearest the sun? It’s January 4th, during what is typically the coldest part of our winter. Seasons are caused by the tilt of the Earth’s rotation axis, not by our distance from the sun.
When the northern hemisphere is tilted away from the sun in late December and January we experience deep winter, while the southern hemisphere is tilted toward the sun and experiencing summer.