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Science: Astronomy Facts

____ discovered Jupiter's four largest moons in 1610. Big Dipper
The ____ comet can be seen about every 75 years. Galileo
The Sun is one of the 100-400 billion stars in the ____ galaxy. Halley
William ____ discovered Uranus using a telescope in 1781. Herschel
The ____ is an asterism in the Ursa Major constellation. Milky Way
Polaris is the brightest star in the ____ constellation. Pluto
Clyde Tombaugh discovered the dwarf planet ____ in 1930. Ursa Minor
The ____ Space Telescope was launched in 2021. Webb