Extrasolar Planet Articles

• Black Holes
  Cosmic Rays
  Stars
  Astronomy
  Astrophysics
  Sun
   
  

  Gravitational wave

  In physics, in terms of a metric theory of gravitation, a gravitational wave is a fluctuation in the curvature of space-time which propagates as a wave, traveling outward from a moving object or ... > more
• Galaxies
  Astronomy
  Astrophysics
  Stars
  Solar Flare
  Black Holes
   
  

  Milky Way

  The Milky Way is a barred spiral galaxy which forms part of the Local Group. Although the Milky Way is but one of billions of galaxies in the universe, the Galaxy has special significance to humanity ... > more
• Galaxies
  Astrophysics
  Astronomy
  Space Telescopes
  NASA
  Space Exploration
   
  

  Barred spiral galaxy

  A barred spiral galaxy is a spiral galaxy with a band of bright stars emerging from the center and running across the middle of the ... > more
• NASA
  Space Exploration
  Space Missions
  Space Station
  Astronomy
  Space Probes
   
  

  NASA

  The National Aeronautics and Space Administration (NASA), which was established in 1958, is the agency responsible for the public space program of the United States of America. NASA's vision is "to ... > more
• Sun
  Solar Flare
  Astronomy
  Solar System
  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
• 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
• 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
• Space Station
  NASA
  Space Exploration
  Space Missions
  Space Probes
  Astronomy
   
  

  Space Shuttle Columbia

  Space Shuttle Columbia (NASA Orbiter Vehicle Designation: OV-102) was the first space shuttle in NASA's orbital fleet. Its first mission, STS-1, lasted from April 12 to April 14, 1981. On February 1, ... > more
• Jupiter
  Solar System
  Moon
  Pluto
  Kuiper Belt
  Astronomy
   
  

  Jupiter's natural satellites

  Jupiter has 63 known natural satellites. Although claims are made for the observation of one of Jupiter's moons by Chinese astronomer Gan De in 364 BC, the first certain observations of Jupiter's ... > more
• Galaxies
  Stars
  Astronomy
  Nebulae
  Astrophysics
  Space Telescopes
   
  

  Magellanic Clouds

  The two Magellanic Clouds are irregular dwarf galaxies orbiting our Milky Way galaxy, and thus are members of our Local Group of galaxies.The Large Magellanic Cloud (LMC) and its neighbour and ... > more

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