Solar System   The Sun and everything that orbits   the Sun, including the nine planets   and their satellites; the astero...
MERCURY• Mercury orbits closer to the Sun than any  other planet, making it dry, hot, and virtually  airless. Although the...
VENUS• Venus is the brightest object in our sky, after the  sun and moon. Swirling clouds of sulfur and  sulfuric acid obs...
EARTH• An oxygen-rich and protective atmosphere,  moderate temperatures, abundant water, and  a varied chemical compositio...
MARS• The most detailed information available about Mars  has come from unpiloted spacecraft sent to the planet  by the Un...
JUPITER• Jupiter is the largest of the planets, with a  volume more than 1,300 times greater than  that of Earth. Jupiter’...
SATURN• Saturn, distinguished by its rings, is the second  largest planet in the solar system. This  processed Hubble Spac...
URANUS• Uranus’s blue-green color comes from the  methane gas present in its cold, clear  atmosphere. The dark shadings at...
NUPTUNE• This image of Neptune, taken by the Voyager 2  spacecraft, shows the planet’s most  prominent features. The large...
PLUTO• Pluto is farther from the Sun than the other  planets in the solar system, although it  occasionally moves in close...
• Some of the largest                                        moons in the solar                                        sys...
SUN02:50   Author: Tomas U. Ganiron Jr   12
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Solar System

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Solar System

  1. 1. Solar System The Sun and everything that orbits the Sun, including the nine planets and their satellites; the asteroids and comets; and interplanetary dust and gas.02:50 Author: Tomas U. Ganiron Jr 1
  2. 2. MERCURY• Mercury orbits closer to the Sun than any other planet, making it dry, hot, and virtually airless. Although the planet’s cratered surface resembles that of the Moon, it is believed that the interior is actually similar to Earth’s, consisting primarily of iron and other heavy elements.02:50 Author: Tomas U. Ganiron Jr 2
  3. 3. VENUS• Venus is the brightest object in our sky, after the sun and moon. Swirling clouds of sulfur and sulfuric acid obscure Venus’s surface and inhibited study of the planet from Earth until technology permitted space vehicles, outfitted with probes, to visit it. These probes determined that Venus is the hottest of the planets, with a surface temperature of about 460° C (about 860° F). Scientists believe that a greenhouse effect causes the extreme temperature, hypothesizing that the planet’s thick clouds and dense atmosphere trap energy from the sun.02:50 Author: Tomas U. Ganiron Jr 3
  4. 4. EARTH• An oxygen-rich and protective atmosphere, moderate temperatures, abundant water, and a varied chemical composition enable Earth to support life, the only planet known to harbor life. The planet is composed of rock and metal, which are present in molten form beneath its surface.02:50 Author: Tomas U. Ganiron Jr 4
  5. 5. MARS• The most detailed information available about Mars has come from unpiloted spacecraft sent to the planet by the United States between 1964 and 1976. From this data, scientists have determined that the planet’s atmosphere consists primarily of carbon dioxide, with small amounts of nitrogen, oxygen, water vapor, and other gases. Because the atmosphere is extremely thin, daily temperatures can vary as much as 100 Celsius degrees (190 Fahrenheit degrees). In general, surface temperatures are too cold and surface pressures too low for water to exist in a liquid state on Mars. The planet resembles a cold, high-altitude desert.02:50 Author: Tomas U. Ganiron Jr 5
  6. 6. JUPITER• Jupiter is the largest of the planets, with a volume more than 1,300 times greater than that of Earth. Jupiter’s colorful bands are caused by strong atmospheric currents and accentuated by a dense cloud cover.02:50 Author: Tomas U. Ganiron Jr 6
  7. 7. SATURN• Saturn, distinguished by its rings, is the second largest planet in the solar system. This processed Hubble Space Telescope image shows the planet’s cloud bands, storms, and rings as they would appear to the human eye.02:50 Author: Tomas U. Ganiron Jr 7
  8. 8. URANUS• Uranus’s blue-green color comes from the methane gas present in its cold, clear atmosphere. The dark shadings at the right edge of the sphere correspond to the day- night boundary on the planet. Beyond this boundary, Uranus’s northern hemisphere remains in a four-decade-long period of darkness because of the way the planet rotates.02:50 Author: Tomas U. Ganiron Jr 8
  9. 9. NUPTUNE• This image of Neptune, taken by the Voyager 2 spacecraft, shows the planet’s most prominent features. The large, dark oval surrounded by white clouds near the planet’s equator is the Great Dark Spot, a storm similar to Jupiter’s Great Red Spot. The smaller dark oval with a bright core below and to the right of the Great Dark Spot is another storm known as Dark Spot 2.02:50 Author: Tomas U. Ganiron Jr 9
  10. 10. PLUTO• Pluto is farther from the Sun than the other planets in the solar system, although it occasionally moves in closer than Neptune due to an irregular orbit. The small, rocky, and cold planet takes 247.7 years to revolve around the Sun. This artists rendition depicts Pluto, foreground; its moon, Charon, background; and the distant Sun, upper right.02:50 Author: Tomas U. Ganiron Jr 10
  11. 11. • Some of the largest moons in the solar system are as large as or larger than the smallest planets. Depicted here to scale are top row, from left to right, Earth, Mars, Mercury, and Earths moon; second row, Jupiter’s satellites Io and Europa; third row, Jupiter’s moons Ganymede and Callisto; and bottom row, Venus and Saturn’s moon Titan.02:50 Author: Tomas U. Ganiron Jr 11
  12. 12. SUN02:50 Author: Tomas U. Ganiron Jr 12

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