Dwarf Planet Pluto Articles

• Stars
  Black Holes
  Nebulae
  Astrophysics
  Galaxies
  Extrasolar Planets
   
  

  Stellar evolution

  In astronomy, stellar evolution is the sequence of changes that a star undergoes during its lifetime; the hundreds of thousands, millions or billions of years during which it emits light and heat. ... > more
• NASA
  Space Telescopes
  Astrophysics
  Space Exploration
  Galaxies
  Sports Science
   
  

  Edwin Hubble

  Edwin Powell Hubble (November 20, 1889 - September 28, 1953) was an American astronomer, noted for his discovery of galaxies beyond the Milky Way and the cosmological redshift. Edwin Hubble was one ... > more
• Space Telescopes
  Space Exploration
  NASA
  Astronomy
  Satellites
  ESA
   
  

  European Southern Observatory

  The European Southern Observatory (ESO, also more formally the European Organisation for Astronomical Research in the Southern Hemisphere) is an intergovernmental research organisation for astronomy, ... > more
• Atmosphere
  Geomagnetic Storms
  Northern Lights
  Solar Flare
  Sun
  Ozone Holes
   
  

  Ionosphere

  The ionosphere is the part of the atmosphere that is ionized by solar radiation. It plays an important part in atmospheric electricity and forms the inner edge of the magnetosphere. It has practical ... > more
• Cosmic Rays
  Black Holes
  Space Telescopes
  NASA
  Space Exploration
  Astronomy
   
  

  Gamma ray burst

  Gamma-ray bursts are the most luminous physical phenomena in the universe known to the field of astronomy. They consist of flashes of gamma rays that last from seconds to hours, the longer ones being ... > 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
• Mars
  NASA
  Space Exploration
  Space Missions
  Solar System
  Space Probes
   
  

  Mars Exploration Rover

  NASA's Mars Exploration Rover (MER) Mission is an unmanned Mars exploration mission that sent two robotic rovers Spirit and Opportunity to explore the Martian surface and geology. Primary among the ... > more
• Stars
  Galaxies
  Astronomy
  Extrasolar Planets
  Sun
  Solar Flare
   
  

  Blue supergiant

  Blue supergiants are supergiant stars (class I) of spectral type O. They are extremely hot and bright, with surface temperatures of between 20,000 - 50,000 degrees Celsius. The best known example is ... > more
• Black Holes
  Astronomy
  Galaxies
  Stars
  Astrophysics
  Nebulae
   
  

  Supernova

  A supernova (plural supernovae) is a stellar explosion which produces an extremely bright object made of plasma that declines to invisibility over weeks or months. A supernova briefly outshines its ... > more
• Galaxies
  Astrophysics
  Astronomy
  Stars
  NASA
  Space Telescopes
   
  

  Galaxy

  A galaxy is a massive, gravitationally bound system consisting of stars, an interstellar medium of gas and dust, and dark matter. Typical galaxies range from dwarfs with as few as ten million stars ... > more

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