Galileo discovered the moons of Jupiter and observed the phases of Venus, providing evidence to support the heliocentric model of the solar system. Herschel discovered the planet Uranus and infrared radiation, expanding our understanding of the universe.
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No, Galileo did not discover Neptune. Neptune was first observed by German astronomer Johann Gottfried Galle in 1846, based on calculations made by Urbain Le Verrier and John Couch Adams. Galileo made significant contributions to astronomy, but he did not discover Neptune.
At his house
He discovered it on the moon.
Galileo did not discover gravity. It was Sir Isaac Newton who formulated the law of universal gravitation.
Never. Pluto was discovered by Clyde Tombaugh, in 1930.