10 Interesting Fact About The World of Astronomy and Space Exploration

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• Earth is the 8th planet from the sun.
• The moon is the only natural satellite of the earth.
• Our solar system consists of 8 planets, 168 natural satellites, and many stars.
• A galaxy consists of hundreds of millions of stars and stars related to it.
• There are about 2 trillion galaxies in the universe.
• Telescopes that can look into space have been used since the 16th century.
• The theory of the universe gravitational was put forward by Isaac Newton in 1687.
• Astronaut Neil Armstrong was the first person to walk on the moon.
• In 2018, there were around 4,000 satellites in space.
• There are about 8,700 stars that can be seen with the naked eye in the night sky.