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13.7 billion years ago all the matter in the Universe was concentrated into a single incredibly tiny point. This began to enlarge rapidly in a hot explosion.
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Stonehenge is the most architecturally sophisticated and only surviving lintelled stone circle in the world.
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Aristotle was an ancient Greek philosopher and scientist
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Ancient Greek astronomer and mathematician who presented the first known model that placed the Sun at the center of the universe and had the earth revolving around it.
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Eratosthenes of Cyrene was a Greek mathematician, geographer, poet, astronomer, and music theorist.
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was a Greek astronomer, geographer, and mathematician. He is considered the founder of trigonometry
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a Greco-Roman mathematician, astronomer, geographer, astrologer, and poet
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Nicolaus Copernicus was a Renaissance- and Reformation-era mathematician and astronomer who formulated a model of the universe that placed the Sun rather than the Earth at the center of the universe
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Danish nobleman known for his accurate and comprehensive astronomical and planetary observations.
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German mathematician, astronomer, and astrologer.
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Italian polymath: astronomer, physicist, engineer, philosopher, and mathematician.
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was a prominent Dutch mathematician and scientist. He is known particularly as an astronomer
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Italian mathematician, astronomer, astrologer and engineer
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English mathematician, astronomer, and physicist who is widely recognised as one of the most influential scientists of all time
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American astronomer whose cataloging work was instrumental in the development of contemporary stellar classification
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American astronomer. He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology and is regarded as one of the most important astronomers of all time.
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American space scientist at the University of Iowa. He was instrumental in establishing the field of magnetospheric research in space.