Space Exploration

A. Development in the field of astronomy 1. Astronomy is the field of study about natural objects in the sky. 2. Ancient astronomers from the Middle East, China and India had made observations about the movements of the Sun, stars and Moon. 3. Ancient astronomers like the Greeks had tried to explain the movements of planets and stars.

Galileo Galilei invented the first asronomical telescope in 1609. His telescope had 30 times magnifying power.

Nicholas Copernicus suggested that the Sun is the centre of the Solar System.

B. Development in space exploration 1. Space exploration was first done from Earth with the used of a telescope. 2. Rockets, man-made satellites, space stations and space shuttles were later invented to continue the efforts of space exploration.

Events in the development of space exploration