Radiation is a form of energy transmitted in rays, particles, or waves. Almost all energy that the Earth uses for its consumption comes from the Sun. This energy travels through space by radiation. Solar radiation, therefore, is the energy, specially electromagnetic energy, that the Sun gives off. The Sun produces energy through nuclear fusion at […]
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Stars give out varying degrees of brightness. Larger stars generally are much more luminous than smaller ones. To measure the brightness or luminosity (also called as radiant power) of a star, astronomers use the Sun’s own level of luminosity as their point of comparison. One solar luminosity unit, therefore, is equal to about 3.839×1026 W,
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The Sun is the Earth’s main source of energy. Since the beginning of time, it has been steadily delivering its energy to every inch of the surface of the Earth. The thing that keeps the Sun from using up all of its energy and power is nuclear fusion, where nuclei combine to form much larger
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Photo by: Mbz1 Creative Commons The sun has large explosions that release so much energy, which can cause a worldwide interruptions of radio communication. It can also produce ongoing radiation storms. This explosion is called a solar flare. This event can happen to other stars and is termed as a stellar flare. In 1859, Richard
The declination of the Sun is the measurement of the angle between the Sun’s rays and the Earth’s equatorial plane. This principle is used to explain why we have different seasons, why there are four in some countries and there are only two in some. The Earth’s axis is tilted by 23.5 degrees away from
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The Sun produces various forms of energy that sustains life on earth. Without the energy provided by the Sun, most life forms known on earth will cease to exist. It will drastically change established life cycles and food chains and will start a new evolution process. Like most stars, the Sun is composed mainly of
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Photo by: RJHall Creative Commons Volatiles are chemical elements and compounds that have small boiling points and are found or connected to the atmosphere and crust of both a moon and a planet. Elements such as hydrogen, nitrogen, carbon dioxide, ammonia, and methane are types of volatiles. Water is also a perfect example as well
Although the Sun is about 93 million miles away from Earth, the various complex processes and activities that it undergoes can still affect the Earth and engage scientists. During the Sun’s eleven year cycle, scientists found that there is a constant period of activity that occurs roughly in the same intervals. Changes in the activity
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A terrestrial planet is a planet which has solid surfaces and is primarily composed of silicate racks and/or metals. There are 4 known terrestrial planets in our solar system – Mercury, Venus, Earth and Mars, which are all inner planets and one terrestrial dwarf planet, Ceres, located in the asteroid belt. These planets share similar
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Photo by: Mbz1 Creative Commons Tides are the periodic fluctuations of large bodies of water. They are caused by the gravitational interaction between the Earth and the Moon in what is generally called tidal forces. Although tidal changes may occur as a result of other factors like the Moon’s altitude and distance, the positions of
