Eleanor Lutz

An animation showcases how the seasons change with Earth's orbit around the sun. Earth's angle causes very specific weather patterns and daylight during the course of a year. Most places experience four seasons, but they're not as pronounced near the equator.

Astronomers believe that billions of years ago, a Mars-sized object smashed into Earth, knocking our planet over and leaving it tilted at an angle.

That ancient bump is what caused the Earth's seasons — times of the year...

Continue Reading Gorgeous animation shows how the Earth changes with the seasons