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Sun. The Sun is the star at the center of the Solar System. It is a massive, nearly perfect ball of hot plasma, [18] [19] heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies.
SUN Behavioral Columbus is a 144-bed psychiatric hospital located on the north side of Columbus. The hospital provides a full continuum of specialized care, including inpatient and day hospital services, for those suffering from mental health illness and substance use disorders.
Learn about the Sun, the star at the center of our solar system, its structure, features, and history. Find out how the Sun affects Earth and other planets, and how it will change in the future.
1 day ago · Surprise findings suggest sunspots and solar flares could be generated by a magnetic field within the Sun’s outermost layers. If confirmed, the findings could help scientists better predict space weather.
- Composition. The sun is made up of a blazing combination of gases. These gases are actually in the form of plasma. Plasma is a state of matter similar to gas, but with most of the particles ionized.
- Electromagnetic Radiation. The sun’s energy travels to Earth at the speed of light in the form of electromagnetic radiation (EMR). The electromagnetic spectrumexists as waves of different frequencies and wavelengths.
- Evolution of the Sun. The sun, although it has sustained all life on our planet, will not shine forever. The sun has already existed for about 4.5 billion years.
- Sun’s Structure. The sun is made up of six layers: core, radiative zone, convective zone, photosphere, chromosphere, and corona. Core. The sun’s core, more than a thousand times the size of Earth and more than 10 times denserthan lead, is a huge furnace.
3 days ago · 2. The sun is 20.5 years old. An Earth year is one revolution of the Earth around the sun. And in Earth years, the sun is about 4.57 billion years old. By contrast, a galactic year is how long it ...
1 day ago · WASHINGTON : The sun's magnetic field, which causes solar storms like the one that hit Earth this month and produced beautiful auroras, may originate at shallower depths in the star's interior ...
