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The study of what remains of their culture shows that their level of development was much higher than the current galactic standard.
en.wikipedia.org When playing against the computer, the player can accelerate time or pause time on both the galactic and skirmish maps.
en.wikipedia.org Water megamasers and kilomasers are found primarily associated with active galactic nuclei, while galactic and weaker extragalactic water masers are found in star forming regions.
en.wikipedia.org Despite different environments, the circumstances that produce extragalactic water masers do not seem to be very different from those that produce galactic water masers.
en.wikipedia.org This is most likely interstellar medium that has been heated by the passage of the cluster through the galactic halo.
en.wikipedia.org