Jupiter Articles

• Sun
  Solar Flare
  Astronomy
  Solar System
  Stars
  Northern Lights
   
  

  Sun

  The Sun is the spectral type G2V yellow star at the center of our solar system. About 5 million tons of matter is converted by the Sun's core into energy every second, producing neutrinos and solar ... > more
• Astrophysics
  Astronomy
  Black Holes
  Space Telescopes
  Stars
  Galaxies
   
  

  Astrophysics

  Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties (luminosity, density, temperature and chemical composition) of astronomical ... > more
• Solar System
  Extrasolar Planets
  Astronomy
  Mars
  Sun
  Nebulae
   
  

  Johannes Kepler

  Johannes Kepler (December 27, 1571 - November 15, 1630), a key figure in the scientific revolution, was a German Lutheran mathematician, astrologer, and astronomer. Kepler lived in an era when there ... > more
• Stars
  Galaxies
  Astrophysics
  Extrasolar Planets
  Solar Flare
  Astronomy
   

  Supergiant

  Supergiants are the most massive stars. Supergiants can have masses from 10 to 70 solar masses and brightness from 30,000 up to hundreds of thousands times the solar luminosity. They vary greatly in ... > more
• Moon
  Space Exploration
  Space Missions
  Space Probes
  NASA
  Pluto
   

  Lunar space elevator

  A lunar space elevator (also called a moonstalk) is a proposed cable running from the surface of the Moon into space. It is similar in concept to the better known Earth space elevator idea (a cable ... > more
• Satellites
  Moon
  Pluto
  Neptune
  Sun
  NASA
   

  Geosynchronous orbit

  A geosynchronous orbit is a geocentric orbit that has the same orbital period as the sidereal rotation period of the Earth. It has a semi-major axis of 42,164 km (26,200 miles). In the special case ... > more
• Sun
  Solar Flare
  Solar System
  Astronomy
  Moon
  Northern Lights
   
  

  Solar eclipse

  A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partially obscuring Earth's view of the Sun. This configuration can only occur during a New Moon, when the ... > more
• NASA
  Space Exploration
  Space Missions
  Astronomy
  Cosmology
  Mars
   
  

  Carl Sagan

  Dr Carl Edward Sagan (November 9, 1934 - December 20, 1996) was an American astronomer, astrobiologist and highly successful science popularizer. He pioneered exobiology and promoted the Search for ... > more
• Venus
  Solar System
  NASA
  Space Missions
  Space Exploration
  Mars
   
  

  Venus

  Venus is the second-closest planet to the Sun, orbiting it every 224.7 Earth days. It is the brightest object in the night sky, except for the Moon, reaching an apparent magnitude of -4.6. Venus ... > more
• Solar Flare
  Sun
  Northern Lights
  Asteroids, Comets and Meteors
  Black Holes
  Satellites
   
  

  Magnetosphere

  A magnetosphere is the region around an astronomical object in which phenomena are dominated or organized by its magnetic field. Earth is surrounded by a magnetosphere, as are the magnetized planets ... > more
• Mars
  Space Missions
  NASA
  Space Exploration
  Solar System
  Space Probes
   
  

  Exploration of Mars

  The exploration of Mars has been an important part of the space exploration missions of the Soviet Union (later Russia), the United States, Europe, and Japan. Dozens of unmanned spacecraft, including ... > more
• Mars
  NASA
  Space Missions
  Solar System
  Space Exploration
  Space Probes
   
  

  Mars

  Mars is the fourth planet from the Sun in our solar system. It is named after Mars, the Roman god of war. Mars has also earned the nickname "The Red Planet" due to the reddish appearance it has when ... > more

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