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Seyfert galaxies are the only type that produces gravitational lensing.
Q11: As the name quasi- stellar radio sources
Q13: The hypernova model is one possible explanation
Q15: The burst of X- rays from an
Q68: Why can the Tully- Fisher relation be
Q72: Planet- sized bodies have been detected around
Q85: The main reason that stars evolved off
Q119: COBE found the cosmic microwave background to
Q127: If the Galactic Year is defined as
Q127: Synchrotron radiation produces a(n) spectrum.<br>A) continuous, with
Q133: Core- dominated radio galaxies and radio galaxies