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A STIS Absorption Spectrum

A STIS Absorption Spectrum
A beam of light coming to Earth from a distant quasar passes through numerous intervening gas clouds in galaxies and in intergalactic space. These clouds of primeval hydrogen subtract specific colors from the beam. The resulting "absorption spectrum," recorded by Hubbles Space Telescope Imaging Spectrograph (STIS) is used to determine the distances and chemical composition of the invisible clouds.
  • Release Date
    November 23, 1998
  • Science Release
    The Universe “Down Under” is the Latest Target for Hubble’s Latest Deep-View
  • Credit
    Science Release Credit: R. Williams (STScI), the HDF-S Team, and NASA

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Last Updated
Mar 28, 2025
Contact
Media

Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov