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he was first in india to launch a sattlite
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he was right about the other planets and the earth circling the sun.
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he found out that the moon had craters, valleys and the others say its just a round ball with no bumps or holes.He discovered that the milky way was made out of stars.he discovered ther was four moons.
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hally's comet named after sir Edmund halley.
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it stands for commenwealth Commonwealth Scientific and Industrial Research Organisation.Read about the National Research Flagships and CSIRO's research.And founded in 1926.
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NASA stand for national areonautics and space administration.they test rockets and give space mission.