Sunlight is a key factor in photosynthesis, the process used by plants and other autotrophic organisms to convert light energy, normally from the Sun, into chemical energy that can be used to synthesize …

1 day ago · Check accurate sunrise and sunset times for any day and any location in the world. Sunrise-Sunset © 2014 - 2026. Sunrise and sunset in Springfield, Missouri as well as day length, twilight and …

Generic astronomy calculator to calculate times for sunrise, sunset, moonrise, moonset for many cities, with daylight saving time and time zones taken in account.

Dec 24, 2025 · Sunlight, solar radiation that is visible at Earth’s surface. The amount of sunlight is dependent on the extent of the daytime cloud cover. Some places on Earth receive more than 4,000 …

Aug 1, 2025 · While there are many good reasons to get some sunlight, it’s important to understand that the sun emits UV radiation. This radiation can penetrate the skin and damage cell DNA, which can …

Feb 20, 2025 · Sunlight provides vitamin D, boosts mood and aids in sleep. Recommendations vary, but just 10 to 30 minutes of sun exposure on bare skin will do the trick.

May 5, 2025 · Sunlight's peak intensity is at a green wavelength. Here’s why it doesn’t appear that way to us.

Sep 12, 2025 · Getting regular sunlight can improve vitamin D levels and boost mood. Everyone's sunshine needs differ, but here's how much to aim for each day.

When the Sun can be seen in the horizon, there is visible evidence of its radiation. This is commonly known as sunlight or daylight. When the Sun can radiate freely to the earth without clouds …

Effect of Sun angle on climate The amount of heat energy received at any location on the globe is a direct effect of Sun angle on climate, as the solar zenith angle (the angle of incidence at which …