Dwarf Planet Pluto Articles

• Stars
  Extrasolar Planets
  Astronomy
  Galaxies
  Black Holes
  Cosmology
   
  

  Star Trek

  Star Trek is an American science fiction franchise. In addition to six television programs including the original 1966 Star Trek, the same fictional universe created by Gene Roddenberry is the ... > more
• Cosmic Rays
  Black Holes
  Detectors
  Space Telescopes
  Medical Technology
  Medical Imaging
   
  

  X-ray

  X-rays are a form of electromagnetic radiation with a wavelength in the range of 10 to 0.1 nanometers, corresponding to frequencies in the range 30 to 3000 PHz. X-rays are primarily used for ... > more
• Sun
  Solar Flare
  Northern Lights
  Astronomy
  Solar System
  Extrasolar Planets
   
  

  Sunspot

  A sunspot is a region on the Sun's surface (photosphere) that is marked by a lower temperature than its surroundings and intense magnetic activity, which inhibits convection, forming areas of low ... > more
• Optics
  Aviation
  Vehicles
  Satellites
  Physics
  NASA
   
  

  Infrared

  Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of microwave radiation. The name means "below red", red being the color ... > more
• Space Probes
  Space Exploration
  Space Station
  Astrophysics
  Solar Flare
  Astronomy
   
  

  Rocket engine

  A rocket engine is a reaction engine that can be used for spacecraft propulsion as well as terrestrial uses, such as missiles. Rocket engines take their reaction mass from within the vehicle and form ... > more
• Space Telescopes
  Space Exploration
  Astronomy
  NASA
  Satellites
  Astrophysics
   
  

  Radio telescope

  A radio telescope is a form of radio receiver used in astronomy. In contrast to an "ordinary" telescope, which receives visible light, a radio telescope "sees" radio waves emitted by radio sources, ... > more
• Astrophysics
  Cosmology
  Big Bang
  Dark Matter
  Astronomy
  Black Holes
   
  

  Big Bang

  The Big Bang is the cosmological model of the universe whose primary assertion is that the universe has expanded into its current state from a primordial condition of enormous density and ... > more
• Cosmology
  Big Bang
  Astrophysics
  Dark Matter
  Black Holes
  Astronomy
   
  

  Ultimate fate of the universe

  The ultimate fate of the universe is a subject of study in the field of cosmology. Vying scientific theories predict whether the life of the universe is finite or infinite. Current understanding of ... > more
• Sun
  Geomagnetic Storms
  Solar Flare
  Astronomy
  Earth Science
  Geology
   
  

  Solstice

  The summer solstice is an astronomical term regarding the position of the sun in relation to the celestial equator. The summer solstice is the day of the year with the longest daylight period and ... > more
• Cosmic Rays
  Black Holes
  Space Telescopes
  Medical Technology
  Physics
  Optics
   
  

  Gamma ray

  Gamma rays are an energetic form of electromagnetic radiation produced by radioactive decay or other nuclear or subatomic processes such as electron-positron annihilation. Gamma rays form the ... > more

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