GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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wrote a book about Earth
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observed the planet’s movement
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used new telescope to observe Venus
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travel to The International Space Station
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Detailed explanation-1: -Galileo knew about and had accepted Copernicus’s heliocentric (Sun-centered) theory. It was Galileo’s observations of Venus that proved the theory. Using his telescope, Galileo found that Venus went through phases, just like our Moon.
Detailed explanation-2: -Galileo turned his gaze toward Venus, the brightest celestial object in the sky-other than the Sun and the Moon. With his observations of the phases of Venus, Galileo was able to figure out that the planet orbits the Sun, not the Earth as was the common belief in his time.
Detailed explanation-3: -The basic tool that Galileo used was a crude refracting telescope. His initial version only magnified 8x but was soon refined to the 20x magnification he used for his observations for Sidereus nuncius.