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A History of Discoveries in the Solar System by Mind Map: A History of Discoveries in the Solar System
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A History of Discoveries in the Solar System

Adapted from


The Venus Tablet of Ammisaduqa, which describes the motion of Venus, is compiled in Babylon

Babylonian astronomers identify Venus, Mercury, Mars, Jupiter, and Saturn

350 BC, Aristotle sites lunar eclipses as evidence that the earth is spherical

Ptolemy codifies the geocentric model of the Solar System

Middle Ages

500, Indian astronomer Aryabhata accurately computes the Earth's circumference


1543, Nicolaus Copernicus publishes his heliocentric theory

1609, Johannes Kepler states that the planets' orbits are elliptical

1610, Galileo Galilei discovers Callisto, Europa, Ganymede, Io, and Saturn's rings

1655, Giovanni Cassini discovers Jupiter's giant red spot

1656, Christiaan Huygens discovers Titan

18th Century

1705, Edmond Halley publicly predicts the periodicity of Halley's comet

1781, William Herschel discovers Uranus

19th Century

1801, Guiseppe Piazzi discovers Ceres

1846, Johann Galle discovers Neptune

1862, Father Angelo Secchi determines that the sun is a star

1877, Asaph Hall discovers Deimos and Phobos

20th Century

1930, Clyde Tombaugh discovers Pluto

1946, An American camera-equipped rocket provides the first picture of Earth taken from space

1959, Luna 3 takes the first pictures of the dark side of the moon

1966, Luna 9 provides the first pictures from the surface of another celestial body

1969, Humans land on the moon

1971, Mariner 9 orbits Mars and reveals the planet's typography

1978, James Christy discovers Charon

1990, The Hubble Telescope is launched

21st Century

2005, Eris is discovered

2006, Pluto is reclassified as a dwarf planet