Q: Why is the summer longer than the winter in the number of days?

The earth revolves around the sun in an elliptical orbit, and the earth reaches its closest point to the sun in early January of each year, that is, during the winter season in the northern hemisphere, and then the earth moves faster in orbit, so winter passes during fewer days ( 89 days).

As for during the summer, the Earth passes at its farthest point from the sun, in early July, and then the Earth moves in its orbit more slowly, so the summer lasts for more days (94 days).

The opposite occurs in the Southern Hemisphere, where the Southern Hemisphere winter is approximately five days longer than the Northern Hemisphere winter.