He made a powerful telescope
planetary motion laws
Galileo
Aristarchus of Samos
Some of Galileo's most significant work was in the field of kinematics, identifying that the total ...by him (or to be written by him) were forbidden, though this latter part was not enforced. ... Galileo Galilei - major areas of study ...
There are numerous theories of planetary motion. Ptolemaeus (earth in the centre), Copernicus (the sun in the centre, planets orbit around it), Kepler (planet orbits are ellipses) all wrote such theories.
Several astronomers wrote theories of planetary motion. Ptolemy's theories date to antiquity. Copernicus wrote his theories in the early 16th century. Kepler's theories were written in the early 17th century.
3 laws' of planetary motion
Galileo Galilei, an Italian scientist, conducted experiments that helped correct misconceptions about force and motion. He is known for his work in physics, particularly in developing the modern scientific method and making significant contributions to the understanding of gravity and the laws of motion.
Large bodies, such as planets and stars, move according to the principles of celestial mechanics, which involve gravitation, inertia, and momentum. Their motion is primarily governed by gravitational interactions with other bodies and the overall structure of the universe. These movements can be predicted and explained using mathematical equations such as Newton's laws of motion and Kepler's laws of planetary motion.
According to Kepler's laws of planetary motion, planetary orbits are in the shape of an ellipse with the Sun at one of the foci.
Keplar figured out the laws of planetary motion using Tycho Brahe's data.
Galileo Galilei is credited with pioneering the laws of motion for falling bodies and pendulums. Through his experiments and observations, Galileo laid the foundation for the understanding of gravity and the motion of objects under its influence. His work became the basis for Isaac Newton's later development of the laws of motion.