Space Probe Articles

• Earth Science
  Geology
  Geomagnetic Storms
  Near-Earth Object Impacts
  Stars
  Asteroids, Comets and Meteors
   
  

  Precession of the equinoxes

  The precession of the equinoxes refers to the precession of Earth's axis of rotation with respect to inertial space. The precession of the equinoxes is caused by the differential gravitational forces ... > more
• Cosmology
  Astrophysics
  Physics
  Quantum Physics
  Big Bang
  Albert Einstein
   
  

  Physical cosmology

  Physical cosmology, as a branch of astrophysics, is the study of the large-scale structure of the universe and is concerned with fundamental questions about its formation and evolution. Cosmology ... > 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
• Astrophysics
  Nebulae
  Galaxies
  Cosmic Rays
  Astronomy
  Stars
   
  

  Interstellar medium

  The interstellar medium (or ISM) is the name astronomers give to the tenuous gas and dust that pervade interstellar space. Whilst the ISM refers to the matter (interstellar matter, also abbreviated ... > more
• Stars
  Extrasolar Planets
  Astronomy
  Black Holes
  Galaxies
  NASA
   
  

  Star Trek: The Original Series

  Star Trek is a science fiction television series created by Gene Roddenberry which aired from September 8, 1966 through June 3, 1969, with a total of 79 episodes aired and 80 episodes produced. ... > more
• Black Holes
  Astronomy
  Astrophysics
  Galaxies
  Stars
  Solar Flare
   
  

  Black hole

  A black hole is a concentration of mass great enough that the force of gravity prevents anything from escaping it except through quantum tunnelling behaviour (known as Hawking Radiation). The ... > more
• Black Holes
  Cosmic Rays
  Stars
  Astronomy
  Astrophysics
  Sun
   
  

  Gravitational wave

  In physics, in terms of a metric theory of gravitation, a gravitational wave is a fluctuation in the curvature of space-time which propagates as a wave, traveling outward from a moving object or ... > more
• Black Holes
  Astronomy
  Solar Flare
  Space Station
  Astrophysics
  Space Exploration
   
  

  Time

  Trying to understand time has long been a prime occupation for philosophers, scientists and artists. There are widely divergent views about its meaning, hence it is difficult to provide an ... > more
• Astrophysics
  Astronomy
  Black Holes
  Space Telescopes
  Stars
  Galaxies
   
  

  Astrophysics

  Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties (luminosity, density, temperature and chemical composition) of astronomical ... > more
• 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

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