Hi guys 👋  this is part 3 of "DID YOU KNOW THAT... EARTH FACTS!" 
💡 there is set term known as Light Pollution it refers to the artificial lights of the cities that illuminate the night sky and create difficulties for the astronomers in studying the night sky.
💡 the flag of Australia of features constellation on it this constellation is called the southern cross you can see it only when you are in the southern hemisphere it is never visible over Europe.
💡 the footprints of the astronaut can remain on the surface of the moon for long time because they are not blown over by the wind.
💡 even at full moon the earth positioned in between the sun and the moon it is only when there is a lunar eclipse that the Earth is exactly in the line with the sun and moon.
💡 eclipse or not rare occurrence at all in the 100 years between 1900 under 2000 there were a total of 148 lunar and to 28 solar eclipses.
💡 the Greek word planet means Wanderer the name indicates that contrary to the stars the planets wander across the sky.
💡 heavenly bodies that move around the planets or known as satellites?
💡 during a solar eclipse the shadow of the moon is not smoothly democrated but slightly jagged this happens because of the mountains and craters on the Moon the sun flashes through some of the craters on the moon and forms a ring resembling for necklaces in the sky. 
💡 the planets of the solar system their named after the Roman God however there satellite where named after the Greek God.
💡 Venus rotates in a direction opposite to that of the Earth and observe or only knows would watch sunrise in the west and sunset in the East.
💡 Mars appears red in the sky the it is also called the red planet the red colour comes from the iron or to be more precise rest containing rock on its surface.
💡 the Sailor James Cook observed the 1969 trances of Venus from the Pacific Island of tahiti.
💡 once every 15 years of the rings of Saturn seem to disappear this is because Saturn and the year position in such a way that edges of the Rings or differently in line with the sunlight the Rings Shine only when they reflect sunlight.
💡 many volcano or active on the Jupiter Moon low which EMIT yellow and red glowing Lava rich in Sulphur.
💡 The Great Red spot on Jupiter is the oldest known cyclone it is a gaint Storm that is known to have existed since at least the 17th century when it was first seen. 
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