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2 days ago · Sun, star around which Earth and the other components of the solar system revolve. It is the dominant body of the system, constituting more than 99 percent of its entire mass. The Sun is the source of an enormous amount of energy , a portion of which provides Earth with the light and heat necessary to support life .
- Evolution
Sun - Evolution, Structure, Radiation: The Sun has been...
- Chromosphere and Corona
The chromosphere represents the dynamic transition between...
- Solar Atmosphere
Sun - Solar Atmosphere, Radiation, Core: Although there are...
- History of Observation
Sun - Astronomy, Heliophysics, Observations: The existence...
- Flares
Sun - Flares, Solar Activity, Coronal Mass Ejections: The...
- Solar Activity
Sun - Solar Activity, Radiation, Coronal Mass Ejections: A...
- Evolution
16 hours ago · The Sun is the star at the center of the Solar System. It is a massive, nearly perfect sphere of hot plasma, 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.
2 days ago · Solar system, assemblage consisting of the Sun and those bodies orbiting it: 8 planets with about 210 known planetary satellites; many asteroids, some with their own satellites; comets and other icy bodies; and vast reaches of highly tenuous gas and dust known as the interplanetary medium.
3 days ago · Comet, a small body orbiting the Sun with a substantial fraction of its composition made up of volatile ices. Comets are among the most-spectacular objects in the sky, with their bright glowing comae and their long tails. Comets can appear at random from any direction as they move in eccentric orbits around the Sun.
2 days ago · Jupiter is the fifth planet from the Sun and the largest in the Solar System.A gas giant, Jupiter's mass is more than two and a half times that of all the other planets in the Solar System combined and slightly less than one one-thousandth the mass of the Sun. Jupiter orbits the Sun at a distance of 5.20 AU (778.5 Gm) with an orbital period of 11.86 years.
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16 hours ago · Physical characteristics Venus to scale among the terrestrial planets of the Solar System, which are arranged by the order of their Inner Solar System orbits outward from the Sun (from left: Mercury , Venus, Earth and Mars )
3 days ago · Physical factors refer to the natural elements and characteristics of the Earth’s surface that influence and shape the physical environment. These factors include landforms, climate, weather patterns, soil properties, water availability, vegetation, and other natural features.
