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More in “Galactic astronomy and astrophysics”

• Galaxy rotation problem
• Age–metallicity relation in the Galactic disk
• Ultraluminous X-ray sources (ULXs)
• What is the origin of the Galactic Center GeV excess? Is it due to the annihilation of dark matter particles or a new population of…
• The infrared/TeV crisis
• How do galactic history and dark matter halos impact the observable properties of galaxies?
• How did the intergalactic medium and the first sources of radiation evolve from cosmic dawn through the epoch of reionization?

Another random astronomy problem →