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Jan 1, 1120
First observatry
built in egtypt out of stone -
Discovers Saturn's rings and titian
Christian Hunygen discovers them -
First telescope
Newon creates first telescope -
First astroid discovered
Piazzi discovers -
Neptune discovered
Johan Galle -
Canals discovered on mars
Schiaparell observes canals on mars -
Planets outside of milkeyway proved
Hubble proves galaxies exist outside of the milkeyway -
Pluto discovered
Cyde Tombaugh -
First american to orbit Earth
Jhon Glenn -
Water found on Mars