Related articles:
Galaxy
Redshift
Active galactic nucleus
Big Bang
Supermassive black hole
Schwarzschild radius
Balmer series
Gamma-ray burst
Spitzer Space Telescope
Gravitational lens
Telescope
Gamma ray
Metric expansion of space
Apparent magnitude
Wormhole
Absolute magnitude
Light-year
Energy
Key terms:
quasars
galaxies
objects
redshift
black hole
emission
telescope
optical
observed
jets
emit
accretion
spectrum
distant
hubble
luminosity
bolton
active galaxy
gravitational
brightest
infrared
radio source
nuclei
magnitude
cosmology
schmidt
emission lines
big bang
spectral
astronomers
host galaxy
speed of light
quasars show
radio galaxy
predicted
milky way
most luminous
supermassive black hole
absorption
ionization
brightness
accretion disc
space telescope
most quasars
some quasars
these objects
nuclear fusion
early universe
gravitational lensing
strong radio emission
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