Space Mission Articles

• Black Holes
  Astrophysics
  Sports Science
  Sun
  Cosmic Rays
  Astronomy
   
  

  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
• Stars
  Galaxies
  Astronomy
  Nebulae
  Astrophysics
  Extrasolar Planets
   
  

  Open cluster

  An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud, and are still loosely gravitationally bound to each other. In contrast, globular ... > more
• Quantum Physics
  Physics
  Cosmic Rays
  Detectors
  Astrophysics
  Black Holes
   
  

  Neutrino

  The neutrino is an elementary particle. It has half-integer spin and is therefore a fermion. All neutrinos observed to date have left-handed chirality. Although they had been considered massless for ... > more
• Drought
  Agriculture and Food
  Nature
  Soil Types
  Invasive Species
  Veterinary Medicine
   

  Drought

  A drought or an extreme dry periodic climate is an extended period where water availability falls below the statistical requirements for a region. Drought is not a purely physical phenomenon, but ... > more
• Nuclear Energy
  Physics
  Astrophysics
  Weapons Technology
  Energy Technology
  Solar Energy
   
  

  Nuclear fusion

  In physics, nuclear fusion is the process by which multiple nuclei join together to form a heavier nucleus. It is accompanied by the release or absorption of energy depending on the masses of the ... > more
• Chemistry
  Nature of Water
  Inorganic Chemistry
  Sports Science
  Thermodynamics
  Graphene
   
  

  Sodium

  Sodium is the chemical element in the periodic table that has the symbol Na and atomic number 11. Sodium is a soft, waxy, silvery reactive metal belonging to the alkali metals that is abundant in ... > more
• Astrophysics
  Cosmology
  Stars
  Black Holes
  Big Bang
  Cosmic Rays
   

  Nucleosynthesis

  Nucleosynthesis is the process of creating new atomic nuclei from preexisting nucleons (protons and neutrons). The primordial preexisting nucleons were formed from the quark-gluon plasma of the Big ... > more
• Physics
  Quantum Physics
  Quantum Computing
  Spintronics
  Graphene
  Black Holes
   
  

  Quantum number

  A quantum number describes the energies of electrons in atoms. Each quantum number specifies the value of a conserved quantity in the dynamics of the quantum system. Since any quantum system can have ... > more
• Mathematics
  Computer Graphics
  Math Puzzles
  Mathematical Modeling
  Computer Modeling
  Computer Programming
   
  

  Ellipse

  In mathematics, an ellipse is a plane algebraic curve where the sum of the distances from any point on the curve to two fixed points is constant. An ellipse can be drawn with two pins, a loop of ... > more
• Stars
  Astrophysics
  Astronomy
  Sun
  Extrasolar Planets
  Sports Science
   
  

  Luminosity

  In general physics, luminosity (more properly called luminance) is the density of luminous intensity in a given ... > more

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