Our solar system consists of the sun and all of its orbiting objects. Orbiting objects include: the planets and their orbiting moons and rings; asteroids, comets, meteors and meteorites; particles of dust and debris. The sun, which keeps all the other objects in orbit with its immense gravitational pull, accounts for 99.8 percent of the …
Astronomy was of interest to Kepler from an early age, but smallpox transferred in childhood hit the future scientist’s eyes hard and seriously limited him in his ability to independently conduct observations. However, interest in science has not been lost. While studying at the university in Tübingen, Kepler got acquainted with the heliocentric system of …
In ancient times, people imagined our planet in different ways: the inhabitants of Babylon believed that they lived on one of the slopes of the “world” mountain surrounded by the sea; in India, the Earth was considered a hemisphere that rests on the backs of elephants; the ancient Egyptians saw the world as a valley …
