ESA Articles

• Kuiper Belt
  Space Station
  Space Probes
  Space Exploration
  Eris (Xena)
  Astronomy
   
  

  Scaled Composites SpaceShipOne

  The Scaled Composites Model 316 SpaceShipOne is an experimental air-launched suborbital spaceplane that uses a hybrid rocket motor. The design features a unique "shuttlecock" reentry system whose ... > more
• Space Telescopes
  Space Exploration
  Astronomy
  NASA
  Satellites
  Astrophysics
   
  

  Radio telescope

  A radio telescope is a form of radio receiver used in astronomy. In contrast to an "ordinary" telescope, which receives visible light, a radio telescope "sees" radio waves emitted by radio sources, ... > 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
• Asteroids, Comets and Meteors
  Solar System
  Pluto
  Kuiper Belt
  Jupiter
  Eris (Xena)
   
  

  Asteroid belt

  The asteroid belt is a region of the solar system falling roughly between the planets Mars and Jupiter where the greatest concentration of asteroid orbits can be found. Despite popular imagery, the ... > more
• Geomagnetic Storms
  Sun
  Solar Flare
  Renewable Energy
  Energy and the Environment
  Wind Energy
   
  

  Solar wind

  A solar wind is a stream of charged particles (i.e., a plasma) which are ejected from the upper atmosphere of a star. When originating from stars other than the Earth's Sun, it is sometimes called a ... > more
• Space Station
  NASA
  Space Exploration
  Space Missions
  Space Probes
  Astronomy
   
  

  Mir

  Mir was a highly successful Soviet (and later Russian) orbital station. It was humanity's first consistently inhabited long-term research station in space. Through a number of collaborations, it was ... > more
• Space Missions
  Space Exploration
  NASA
  Uranus
  Space Probes
  Jupiter
   
  

  Voyager program

  The Voyager program consisted of a pair of unmanned scientific probes, Voyager 1 and Voyager 2, launched in 1977. They were sent to study Jupiter and Saturn, using an advantageous planetary alignment ... > more
• Sun
  Solar Flare
  Northern Lights
  Satellites
  Astronomy
  Solar System
   
  

  Geomagnetic storm

  A geomagnetic storm is a temporary disturbance of the Earth's magnetosphere. Associated with solar coronal mass ejections, coronal holes, or solar flares, a geomagnetic storm is caused by a solar ... > more
• Atmosphere
  Geomagnetic Storms
  Northern Lights
  Solar Flare
  Sun
  Ozone Holes
   
  

  Ionosphere

  The ionosphere is the part of the atmosphere that is ionized by solar radiation. It plays an important part in atmospheric electricity and forms the inner edge of the magnetosphere. It has practical ... > more
• Extrasolar Planets
  Solar System
  Jupiter
  Astronomy
  Kuiper Belt
  Stars
   
  

  Gas giant

  A gas giant is a large planet that is not primarily composed of rock or other solid matter. Gas giants may have a rocky or metallic core—in fact, such a core is thought to be required for a gas ... > more

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