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Virtually the entire disk of the Galaxy has been mapped using the wavelength.
Q12: The spherical distribution of the globular clusters
Q33: Quasars were used to determine the size
Q43: What temperature is needed to fuse helium
Q46: According to the HST data, very distant
Q48: The spectra of interstellar gas clouds show
Q78: Of what is the galactic halo composed?
Q85: The main reason that stars evolved off
Q91: How does the energy of the cosmic
Q110: A carbon- detonation supernova starts out as
Q121: How has the chemical composition of the