One of the most important consequences of Earth's axial tilt is the seasons. Seasons happen because the tilt points different parts of the planet toward the sun at different times of the year.

The Earth’s tilt means we experience four seasons as we orbit the Sun ... and this is what causes the phases of the Moon: This diagram shows how the Moon appears to change shape as it orbits ...

In this first episode of In The Clouds, we take an in-depth look at the differences between astronomical seasons, the system ...