Space Mission Articles

• 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
• 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
• Astrophysics
  Dark Matter
  Cosmology
  Astronomy
  Big Bang
  Black Holes
   
  

  Dark energy

  In physical cosmology, dark energy is a hypothetical form of energy that permeates all of space and tends to increase the rate of expansion of the universe. Assuming the existence of dark energy is ... > 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
• 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
• Cosmology
  Big Bang
  Astrophysics
  Galaxies
  Astronomy
  Satellites
   
  

  Shape of the Universe

  The shape of the Universe is a subject of investigation within physical cosmology. Cosmologists and astronomers describe the geometry of the Universe which includes both local geometry and global ... > more
• Galaxies
  Astrophysics
  Astronomy
  Cosmology
  Stars
  Big Bang
   
  

  Galaxy formation and evolution

  The formation of galaxies is still one of the most active research areas in astrophysics; and, to some extent, this is also true for galaxy evolution. Some ideas, however, are now widely accepted. ... > 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
• Astronomy
  Cosmology
  Sun
  Extrasolar Planets
  Solar System
  Satellites
   
  

  Nicolaus Copernicus

  Nicolaus Copernicus (February 19, 1473 - May 24, 1543) was the astronomer who formulated the first modern heliocentric theory of the solar system. His epochal text, De revolutionibus orbium ... > more
• Galaxies
  Astrophysics
  Cosmology
  Astronomy
  Big Bang
  Space Telescopes
   
  

  Large-scale structure of the cosmos

  In physical cosmology, the term large-scale structure refers to the characterization of observable distributions of matter and light on the largest scales (typically on the order of billions of ... > more

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