If we direct our telescope to the sky in a clear sky, we will find many masses of bright gases. At places these are less bright and present fog like dimness. These are known as Nebulae. Scientists think that the nebulae are the hot gaseous form of matter. Hubble, Wyse and Mayall have found new facts about nebulae after making special studies.
The nebulae belong to two types:-
Galactic Nebulae
Extra Galactic Nebulae
The area near the nebulae remains luminous. Its study helps us to understand the birth of stars and solar system.
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