Space & Time 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
• Black Holes
  Astrophysics
  Cosmology
  Astronomy
  Big Bang
  Stars
   
  

  Stephen Hawking

  Stephen William Hawking, CH, CBE, FRS (born 8 January 1942) is a theoretical physicist. Hawking is the Lucasian Professor of Mathematics at the University of Cambridge, and a Fellow of Gonville and ... > more
• Albert Einstein
  Black Holes
  Physics
  Quantum Physics
  Cosmology
  Sports Science
   
  

  General relativity

  General relativity (GR) is the geometrical theory of gravitation published by Albert Einstein in 1915. It unifies special relativity and Sir Isaac Newton's law of universal gravitation with the ... > more
• Space Station
  Space Missions
  ESA
  Space Exploration
  NASA
  Space Probes
   
  

  European Space Agency

  The European Space Agency (ESA), established in 1975, is an inter-governmental organisation dedicated to exploration of space with currently 17 member states. ESA has ambitious space plans that may ... > more
• Venus
  Solar System
  NASA
  Space Missions
  Space Exploration
  Astronomy
   
  

  Venus

  Venus is the second-closest planet to the Sun, orbiting it every 224.7 Earth days. It is the brightest object in the night sky, except for the Moon, reaching an apparent magnitude of -4.6. Venus ... > more
• Solar System
  Uranus
  Moon
  Pluto
  Jupiter
  Astronomy
   
  

  Uranus' natural satellites

  Uranus has 27 known moons. The first two moons (Titania and Oberon) were discovered by William Herschel on March 13, 1787. Two more moons (Ariel and Umbriel) were discovered by William Lassell in ... > more
• Nature of Water
  Physics
  Astrophysics
  Quantum Physics
  Thermodynamics
  Dark Matter
   
  

  Phase (matter)

  A phase is a set of states of a macroscopic physical system that have relatively uniform chemical composition and physical properties (i.e. density, crystal structure, index of refraction, and so ... > 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
• 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
• 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

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