Neptune Articles

• Galaxies
  Astronomy
  Stars
  Astrophysics
  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
• Physics
  Quantum Physics
  Astrophysics
  Black Holes
  Albert Einstein
  Nuclear Energy
   
  

  Physics

  Physics is the science of matter and its motion—the science that deals with concepts such as force, energy, mass, and charge. As an experimental science, its goal is to understand the natural ... > more
• Space Station
  NASA
  Space Missions
  Space Exploration
  Space Probes
  Astronomy
   
  

  International Space Station

  The International Space Station (ISS) is a joint project of five space agencies. The ISS has seen the first space tourist, Dennis Tito, who spent 20 million USD to fly aboard a Russian supply mission ... > more
• NASA
  Space Exploration
  Space Missions
  Astronomy
  Cosmology
  Astrophysics
   
  

  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
• 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
• Astrophysics
  Galaxies
  Cosmology
  Physics
  Black Holes
  Astronomy
   
  

  Redshift

  In physics and astronomy, redshift is an observed increase in the wavelength of electromagnetic radiation received by a detector compared to that emitted by the source. For visible light, red is the ... > more
• Alternative Fuels
  Astrophysics
  Fuel Cells
  Organic Chemistry
  Galaxies
  Chemistry
   
  

  Hydrogen

  Hydrogen is a chemical element in the periodic table that has the symbol H and atomic number 1. At standard temperature and pressure it is a colorless, odorless, nonmetallic, univalent, tasteless, ... > 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
• Astronomy
  Cosmology
  Sun
  Solar System
  Extrasolar Planets
  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
• Black Holes
  Astrophysics
  Sports Science
  Sun
  Cosmic Rays
  Solar Flare
   
  

  Black body

  In physics, a black body is an object that absorbs all electromagnetic radiation that falls onto it. No radiation passes through it and none is reflected, yet in classical physics, it can ... > more

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