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3. Hubble's sci

Alternative clues for the word astr

• Solar-system sci
• Observatory subj
• Sagan's subj
• Study of the heavens: Abbr.
• Field in which things are looking up?: Abbr.
• Sci. subject
• Man with a telescope: Abbr
• Celestial sci
• Tycho Brahe's sci.
• Space science: Abbr.