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Subject
- observational astronomy[remove]33
- galaxies10
- optical astronomy10
- ultraviolet astronomy8
- galactic and extragalactic astronomy7
- optical astronomy7
- infrared astronomy4
- galatic evolution3
- radio astronomy2
- star formation2
- supernovae2
- and infrared astronomy1
- dark matter1
- galactic evolution1
- galaxy evolution1
- galaxy evolution and structure1
- globular clusters1
- hubble space telescope observations1
- interacting galaxies1
- interstellar medium1