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Proved the earth was spherical and the sun,moon,planets,and stars move in different spheres
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Wrote the first star and astronomical catalogue first to become precession of equinoxes and calculated the correct the right distance between the earth and moon
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He made the Geocentric Theory he also wrote Almagest and made the Ptolemaic Model
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Earth revolves around the sun and said that the sun is the center of the universe
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Most accurate planetary observations before the telescope
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he was an Italian scientist that discovered all four of Jupiter's moons Io, Callisto,Europa,Ganymede and Jupiter itself he also agreed with Copernicus along with discovering sunspots
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He created the telescope with a 3x magnification,the patent for it,and eyeglasses
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A revolutionary telescope that uses mirrors to see far away objects
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He made the three laws of planetary motion which say that the planets move around the sun in an ellipse
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A telescope that reflects light to illuminate the object you are watching
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He discovered the Diurnal Rotation of Venus and separation of Saturn’s rings
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Three laws of motion by working off of Copernicus
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Discovered the planet Uranus and its moons. In 1800 he conducted an experiment and discovered IR.
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Discovered the planet Puto and studied the “canals” on Mars.Built the Lowell observatory in Flagstaff
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An inventor of the Hertzsprung Russell diagram which shows the absolute magnitude and the spectral type of star
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He was known for the Theory of Relativity
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Using the color of the stars,discovered the universe is expanding which is called hubble’s law
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He created the radio telescope and he was the first radio astronomer and he discovered radio waves emanating from the milky way
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It was a Soviet probe that was described as a silver basketball and it was the first manmade object to reach space.
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1961 He was the first man to go reach space on board 3KA-3 spacecraft
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He was the first man to orbit the earth
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He was the first man on the moon and he made the quote “that is one step for a man and one giant leap for mankind”
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The first shuttle in space for research.
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It was the first successful rover to make it to Mars surface
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It was a spacecraft that was named after Giovanni Cassini and was sent to Saturn
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A highly anticipated mission that was sent by SpaceX and it is the most powerful rocket yet.