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Galileo Galilei

Galileo is looking through a telescope. Illustration: shutterstock

Galileo's mistakes

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Galileo Galilei made many discoveries that changed the face of science as we know it today, but along the way he made several mistakes and drew wrong conclusions. Even the smartest scientists make mistakes! What can be learned from mistakes?
Different ideas about the universe in the period before Galileo. Illustration: shutterstock

Who was Galileo Galilei?

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What kind of person was Galileo? How did his innovative world views develop? What was it like to live in Renaissance Florence and study at the University of Pisa?
speed of light. Illustration: shutterstock

340 years to determine the speed of light

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The earth is no longer at the center of the universe. The inner solar system. Illustration: shutterstock

The center of the universe, peace

A humorous look at human evolution. Image: POSSAN - Wikimedia Commons

A process is not a theory, a fact is not an assumption

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The images of Neptune were taken by Hubble's Wide Angle Camera #3 on June 25-26 during the planet's 16-hour orbit around its axis. The images were taken at intervals of about four hours so that they allow a full view of the planet. The images show clouds in the high latitudes of both the northern and southern hemispheres. The clouds are mainly composed of methane ice crystals.

Neptune - Rahav has completed one lap since it was discovered

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The orbits of the stars according to Tycho Brahe

Did Galileo Galilei ignore observations?

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Poster of the Science Museum in Florence, June 2010, in honor of its transformation into the Galileo Museum

Galileo's fingers are on display in a museum in Florence

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400 years since the first observation through a telescope by Galileo Galilei

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The International Year of Astronomy has begun

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Was Galileo wrong?

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A new book published by Kinneret: Galileo's daughter - a wonderful story about the connection between science and love

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Fun science - an opera about Galileo

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