![]() ![]() Galileo suggested that this was due to their immense distance from Earth. Stars in the Milky WayĮven through a telescope the stars still appeared as points of light. It was not until 1656 that the Dutch scientist, Christiaan Huygens correctly described them as rings. Galileo noted two appendages from the sides of Saturn. Its blemishes and imperfections again undermined the Aristotelian ideal of a perfect cosmos. Galileo, in his Letters on Sunspots supported the sunspot interpretation and used it to show that the Sun was rotating. Debate centered on whether these were satellites of the Sun or actual spots on its surface. SunspotsĪlong with contemporaries such as Thomas Harriot, David Frabicius and Christoph Scheiner, Galileo observed dark regions that appeared to move across the surface of the Sun. Galileo rejected Tycho's model as an unnecessary hybrid and used the discovery to consolidate his support of the Copernican model. This could not be explained in the Ptolemaic model but could be accounted for by either the Sun-centered Copernican model or the Earth-centered Tychonic model that had the other planets orbiting the Sun as it orbited the Earth. Venus was observed to go through a sequence of phases similar to the Moon. However, Galileo Galilei is often recognized as the inventor of the telescope due to his significant contributions to the field of astronomy.Galileo's drawings of the moons of Jupiter of successive nights The Phases of Venus.The telescope was a collaborative effort that was developed and improved upon by a number of brilliant minds over time.His contributions to the field of astronomy and his innovative use of the telescope helped lay the foundations for modern astronomy.The many discoveries he made using the instrument.Galileo is often given credit for inventing the telescope due to earlier efforts that he made: In the early 17th century, Italian mathematician and engineer Guidobaldo del Monte built a reflecting telescope that used a mirror instead of lenses. ![]() In the late 16th century, Dutch mathematician and astronomer Johannes Kepler had also developed a telescope using lenses.Galileo was not the first person to build a telescope.With this telescope, he was able to make many groundbreaking discoveries, including:.In the early 17th century, Galileo developed a small, refracting telescope that used lenses to magnify objects.Dutch mathematician and astronomer Galileo Galilei. ![]() The credit for the invention of the telescope is often given to:
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