When it comes the time for eclipse, the Moon the Sun and Earth are located one after another at the same line. Lunar eclipse is possible when the Earth traps in front of the Sun, and the shadow cast on the Moon creates eclipse. It is possible only with a full Moon phase.
Solar eclipse happens when the Moon is in front of the Earth and it blacks the Sun. However, it is possible only during the new moon phase. His type of eclipse isn’t frequent, as the Moon’s shadow is really small on the Earth. Previous full solar eclipse in the US took place in Aug. 2017, and the next one is anticipated Apr 2024.
The axis of Earth is inclined towards the ecliptic plane. Ecliptic plane is a visional surface through Earth’s track around the Sun. This way the Northern and Southern poles will occasionally have different directions away from the Sun. It changes each season, and regulates the amount of light our planet gets, which basically creates the seasons of the year.
The inclination of the axis is approximately 23.5 degrees. The same for the Moon is 1.5 degrees. The Moon itself doesn’t have seasons at all. Some locations on the Moon are always bright and lit with sunlight, and analogically some other locations are always dark and cold.