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02209_Field_quasar.txt
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1995-11-04
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393b
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quasar: The name ΓÇ£quasarΓÇ¥ comes
from ΓÇ£quasi-stellarΓÇ¥ and was given to
points in the sky that were like stars
but did not have starlike spectra.
Astronomers now believe quasars are
extremely distant galaxies, which we
see because of a powerful energy
source at their center. These sources,
thought to produce more energy than
anything else in the universe, may be
black holes.