Why earth has seasons?

There is a different reason for Earth's seasons. Earth's axis is an imaginary pole going right through the center of Earth from "top" to "bottom." Earth spins around this pole, making one complete turn each day. read more

Earth’s distance from the sun does change throughout the year, and it’s logical to assume that an increase or decrease in a sun-planet distance could cause a cyclical change in the seasons. But – in the case of our planet – this change is too small to cause this change. read more

We have seasons because the Earth’s axis is tilted. Consider any globe you’ve ever used, and you’ll see that instead of being straight up and down, the Earth is at a tilt of 23.5-degrees. The Earth’s North Pole is actually pointed towards Polaris, the North Star, and the south pole towards the constellation of Octans. read more