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The stones from Stonehenge are aligned which point to astronomical events. It was used as an ancient burial site. Its legally protected. It helped people back then know what day it was. It was like a calendar. Its located in England.

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Hipparchus of Nicaea was a Greek astronomer, geographer, and mathematician. He is considered the founder of trigonometry but is most famous for his incidental discovery of procession of the equinoxes. People didn’t believe him. They thought that earth was in the middle of the solar system. Even though he correctly proved them wrong. He measured the earth-moon distance accurately

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Founder of Ptolemaic model of the solar system. Most accurate Greek attempt to explain planetary motion. He lived in the city of Alexandria in the Roman province of Egypt, under the rule of the Roman Empire. He said that the universe consisted of 55 concentric circles and Earth was placed at the center.

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Founder of Heliocentric model of the solar system. Most accurate model before modern technology. Copernicus was born on February 19, 1473 in Torun, Poland and passed away in 1543. He was an astronomer and mathematician. There were other astronomers with the idea of the heliocentric system but his concept had detailed and surpassed any other system as it was accurate. It was a better image on how the sun was the center rather than the Earth.

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Alchemist, astrologer, astronomer, supporter of the geocentric (Earth-centered) theory of the Solar System. Designer and builder of astronomical instruments. Made some of the most accurate observations of planetary positions which would eventually prove useful to his predecessors. Brahe showed irregularities in the Moon's orbit and discovered a new star in the Cassiopeia formation. Brahe invented many instruments such as the Tyconian Quadrant which were widely copied and led to the invention of improved observational equipment. In 1600, Tyco Brahe hired Johannes Kepler as his assistant.

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Galileo was born is February 15, 1564 and died in January 8, 1642. He was an Italian astronomer, physicist and engineer. Of all his telescope discoveries, he is perhaps most known for his discovery of the four most massive moons of Jupiter, now known as the Galilean moons: Io, Ganymede, Europa and Callisto. When NASA sent a mission to Jupiter in the 1990s, it was called Galileo in honor of the famed astronomer. He discovered the 4 moons of Jupiter. He built his own telescope when he heard of its invention. He had never seen one, but still made one. He discovered the geography of the moon. He discovered sunspots.

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Johannes Kepler was a German astronomer, mathematician, and astrologer. He is a key figure in the 17th-century scientific revolution, best known for his laws of planetary motion, and his books Astronomia nova, Harmonices Mundi, and Epitome Astronomiae Copernican. Johannes Kepler is best known for his three laws of planetary motion. ... Planets move in orbits shaped like an ellipse. A line between a planet and the Sun covers equal areas in equal times.

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Invention and improvement of telescope: 1608

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Invention and improvement of telescope: 1608

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Telescopes were made to research and gather information of stars and planets in space. The refracting telescope uses a lens and reflecting a mirror. Because of this invention people were able to see the planets and many more features in space that are part of this world.

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English Physicist and mathematician, 1643-1727. Discovered gravity and the law of universal gravitation. Although Isaac Newton is well known for his discoveries in optics (white light composition) and mathematics (calculus), it is his formulation of the three laws of motion—the basic principles of modern physics for which he is most famous.

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Albert Einstein was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics. His work is also known for its influence on the philosophy of science. Born in March 14th, 1879. As a physicist, Einstein had many discoveries, but he is perhaps best known for his theory of relativity and the equation E=MC2, which foreshadowed the development of atomic power and the atomic bomb. Developed the theories of special and general relativity.

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Stephen William Hawking CH CBE FRS FRSA was an English theoretical physicist, cosmologist, and author who was director of research at the Center for Theoretical Cosmology at the University of Cambridge at the time of his death. Hawking showed that quantum effects allow black holes to emit exact black-body radiation. The electromagnetic radiation is produced as if emitted by a black body with a temperature inversely proportional to the mass of the black hole.