ASTRONOMY 

• The Astronomy is a natural science which is the study of celestial objects ( stars, galaxies, planets) 

• The Sun the biggest Star, is red with orange spots

• Planets are eight Mercury,Venus, Earth, Mars, Jupiter, Saturn, Uranus. Neptune. without pluto because is too small and the orbit is different.

• Mercury is the smallest and closest to the Sun of the eight planets in the Solar System, with an orbital period of about 88 Earthdays.

• Venus is the second planet from the Sun.It has no natural satellite. After the Moon, it is the brightest natural object in the night sky.

• Earth is the third planetfrom the Sun, the earliest life on Earth arose at least 3.5 billion years ago.Its has a moon.

• Mars is the fourth planet from the Sun and the second smallest planet in the Solar System, after Mercury. It is often described as the "Red Planet".