-- card: 12897 from stack: in
-- bmap block id: 27633
-- flags: 0000
-- background id: 2564
-- name: 


-- part contents for background part 1
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More than half of all the stars in the universe are binary stars (stars that are paired with another star).


-- part contents for background part 2
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Human female breasts are large only for sexual attraction reasons and not for the purpose of breast feeding. Humans are the only primates that have large breasted females.