space exploration

1. A. Development in the field of astronomy
1. Astronomy is the field of study about naturalobjects 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 Nicholas Copernicus
the first asronomical suggested that the
telescope in 1609. Sun is the centre of
His telescope had 30 times the Solar System.
magnifying power.

2. 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.

3. Events in the development of space exploration