who discovered the earth is globe

Who first claimed that the earth revolves spherically around the sun?1 pointa) Sir Isaac Newtonb) Keplerc) Copernicusd) Ptolemy

Which planet other than Earth was the first to be studied by a satellite launched from Earth?

Who led the first expedition to circumnavigate the globe?Amerigo VespucciFerdinand MagellanGiovanni da VerrazanoVasco Nunez de Balboa

The Scientific Revolution began with the work of the Polish astronomer Nicolaus Copernicus. His work led to a new view of the universe.For nearly two thousand years, most people considered Earth the center of the universe. According to this geocentric theory, the sun, stars, and planets—everything believed to be the universe—traveled around a motionless Earth. Aristotle had taught this theory. The Bible also seemed to support it since, in one Bible story, God stops the sun from moving across the sky. Additionally, the geocentric theory seemed to make obvious sense because the sun and stars do appear to travel around Earth.Aristotle had also taught that all heavenly bodies move in circles. Unfortunately, this belief made it difficult to explain the observed movements of planets, such as Mars and Jupiter. In the 2nd century C.E., Ptolemy created a complicated theory to account for this.Both ancient and medieval writers, including Muslim scientists, found problems with Ptolemy's theory. In the early 1500s, Copernicus tackled these issues when he used observations and mathematics to propose a very different idea. According to his heliocentric theory, Earth and the other planets travel in orbits around the sun, which is at the center of this solar system. Earth also turns on its own axis every 24 hours, explaining why heavenly objects seem to move around Earth.Like Ptolemy, Copernicus had trouble predicting the movement of planets with perfect accuracy, but he still believed his theory was simpler and more satisfying than Ptolemy's. In 1543, he described his idea in a published book. However, the book convinced very few people and was even attacked by some Church officials and scientists.Then, in the early 1600s, German scientist Johannes Kepler expanded on Copernicus's theory. After studying detailed observations, Kepler realized that the orbits of the planets were ovals, not circles. With this insight, he wrote precise mathematical laws describing the planets' movements around the sun.Kepler's laws coincided beautifully with actual observations, proving that the Copernican theory was correct. Once the theory was accepted, people would never again hold the same view of Earth's place in the universe.

what did scientists believe about the earths crust before the theory of plate tectonics?