Every year in early January, Earth reaches the closest point in its orbit to the Sun, a moment astronomers call perihelion. We are slightly nearer to our star and receiving more solar energy than we ...

As we get closer to the end of the year, the days get shorter and shorter. Meanwhile, they get longer and longer as we get into the spring. This is all due to the angle of the sun in our sky. The sun ...

Earth’s orbit around the Sun isn’t a perfect circle—it’s slightly elliptical. Each year, around July 2 or 3, Earth reaches its farthest point from the Sun, known as aphelion. Around January 2 or 3, ...

While sunrise and sunset times are constantly on the move, sunlight rapidly increases in March (and rapidly decreases in September). During the month of March, some parts of the United States will add ...

Winter often feels like a long stretch of weak light and cold air. The idea that Earth is actually closest to the Sun during this time can sound wrong, almost misleading. January mornings do not feel ...

Earth has surpluses of radiation in its equatorial regions, and deficits toward its poles. Our weather is a matter of Earth ...

That’s right, the temperature does not determine how strong the sun is, but rather the angle of the sun in the sky. The higher the angle, the more intense the sunlight… The angle of the sun determines ...

Daylight saving time is not the real reason why we're getting more sunlight in the spring and summer. Here's what causes the longer days.

PORTLAND, Ore. (KOIN) — The sun’s angle is changing around Portland and that will impact the body’s response in the months to come. Days are getting shorter and night are getting longer as Portland ...