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Which of the is not another name for the pleiades?
Explain how old is our earth?
The hydrogen envelope that surrounds the comets nucleus derives its hydrogen most directly from?
How important is recording observations in Astronomy?
Sam langley invented what instrument, which allows astronomers to measure the energy output of the sun and other stars?
Why stars are seen in colours?
Tell me how many earths can fit into jupiter s great red spot?
How many black holes are there?
In which constellation is abig nebula still giving birth to stars?
Explain the venus atmosphere.
What are super galaxial nebulae?
Who were the ancient astronomers of the west?
Tell me how long is a day on saturn?
The apparent speed of the sun along the ecliptic is known as?
How many moons do Mars planet have?
