Though sun halos can happen year-round, they are especially noticeable in the winter when ice-filled cirrus clouds are more common.

But far beyond that, the summer sun may help you avoid winter depression. Called seasonal affective disorder (SAD), seasonal depression and mood variation is known to be related to how much ...

During winter, the sun sits lower in the sky, making sunlight feel weaker. However, as spring approaches, the sun's angle increases, allowing more direct sunlight to reach the ground. Snow can ...