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3. Sagan's subj

Alternative clues for the word astr

• Celestial prefix
• Subj. for starry-eyed students
• Subj. for Carl Sagan
• Observatory subj.
• "Cosmos" subj.
• Study of the stars: Abbr.
• Stargazers' sci
• Galaxy sci.
• Dark matter sci
• Study of the heavens: Abbr.