GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a nebula
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a planet
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a meteor
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a galaxy
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Detailed explanation-1: -A nebula is a giant cloud of dust and gas in space. Some nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a dying star, such as a supernova. Other nebulae are regions where new stars are beginning to form.
Detailed explanation-2: -Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.
Detailed explanation-3: -What are the fundamental components of the Universe? Through Cosmology, we managed to measure the composition of the universe in four components: Radiation (formed by photons, which are particles of light), “baryonic” matter (which constitutes everything we know), dark matter and dark energy.