SOLAR SYSTEM

UNIVERSE

SOLAR SYSTEM FORMATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A star that is formed from a big cloud of gas and dust is known as a:
A
dust cloud
B
space fog
C
neutron cloud
D
nebulae
Explanation: 

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. For this reason, some nebulae are called “star nurseries."

Detailed explanation-2: -Nebulae are often star-forming regions, such as in the “Pillars of Creation” in the Eagle Nebula. In these regions, the formations of gas, dust, and other materials “clump” together to form denser regions, which attract further matter, and eventually will become dense enough to form stars.

Detailed explanation-3: -Stars form in huge clouds of gas and dust called nebulae. These areas of space are sometimes known as ‘stellar nurseries’ or ‘star forming regions’. Stars are not true stars until they can fuse hydrogen into helium. Before that point, they are called protostars.

Detailed explanation-4: -A famous example of an emission nebula is the Orion Nebula, a huge, star-forming nebula in the constellation Orion. The Orion Nebula is home to a star cluster defined by four massive stars known as the Trapezium.

Detailed explanation-5: -A nebula is a cloud of dust and gas, usually tens to hundreds of light years across. A galaxy is much larger-usually thousands to hundreds of thousands of light years across. Nebulae are one of the many things that galaxies are made of, along with stars, black holes, cosmic dust, dark matter and much more.

Detailed explanation-6: -It is in these nebulae that dust and gas can come together to form stars. A star is not truly a star until it can fuse hydrogen into helium. Before that, they are called Protostars. A protostar is formed as gravity begins to pull the gases together into a ball.

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