A STIS Absorption Spectrum
A STIS Absorption Spectrum
Download Options

News release ID: STScI-1998-41
Release Date: Nov 23, 1998
Image Use: Copyright
About this image

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.


Tags
Deep Fields, Hubble Deep Field, Hubble Telescope, Illustrations, Survey