Hubble Space Telescope_00.1
UPSC Exam   »   How to Prepare for UPSC CSE Mains Examination: Step-by-Step Guide for Beginners   »   Hubble Space Telescope

Hubble Space Telescope

Context

  • Recently, NASA has shared a picture of an open cluster known as NGC 2164 that was captured by the Hubble Space Telescope (HST).
    • This image was taken by the NASA/ESA Hubble Space Telescope’s Wide Field Camera 3 (WFC3), which has previously imaged many other open clusters, including NGC 330 and Messier 11.

Hubble Space Telescope_50.1

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About NGC 2164

  • It was first discovered in 1826 by a Scottish astronomer named James Dunlop.
  • It is located within one of the Milky Way galaxy’s closest neighbors — the satellite galaxy is known as the Large Magellanic Cloud.
  • Large Magellanic cloud: it is a relatively small galaxy that lies about 160,000 light-years from Earth.
    • It is considered a satellite galaxy because it is gravitationally bound to the Milky Way.

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Key Points about Hubble Telescope

  • It was launched in 1990 into Low Earth orbit by NASA (USA Space Agency) with the contribution and in collaboration with the European Space Agency.
  • It is named after the astronomer Edwin Hubble.
  • Part of NASA’s Great Observatories Program: Including Hubble Telescope, it is a family of four space-based observatories, each observing the Universe in a different kind of light.
    1. The visible-light Spitzer Space Telescope,
    2. Compton Gamma-Ray Observatory (CGRO), and
    3. The Chandra X-Ray Observatory (CXO).
    4. The optical light Hubble space telescope
  • Key features of the Hubble Telescope:
    • It covers the entire Optical spectrum from infrared to ultraviolet.
    • It makes one orbit around Earth every 95 minutes.

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Important Contributions of the Hubble Telescope

  • Helped in discovering the moons around Pluto.
  • Evidence regarding the existence of black holes has emerged based on the observations through Hubble.
  • The birth of stars through turbulent clouds of gas and dust has also been observed.
  • Made observations of six galaxies merging together.
  • The Hubble telescope has made observations of small concentrations of black holes.

 

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