UNIVERSE
SOLAR SYSTEM FORMATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Our sun is just one of at least 200 billion stars in our own Milky Way galaxy. Similarly, our solar system is one of many solar systems, and even our galaxy is just one of many galaxies. Scientists believe there are hundreds of billions of galaxies in the universe.
Detailed explanation-2: -From largest to smallest they are: Universe, galaxy, solar system, star, planet, moon and asteroid.
Detailed explanation-3: -A galaxy is composed of hundreds of billions of stars, while our solar system is ‘just’ the stuff orbiting one star, our sun. Our solar system is a tiny part of the Milky Way Galaxy, being much smaller than it.
Detailed explanation-4: -Imagine that our entire Solar System were the size of a quarter. The Sun is now a microscopic speck of dust, as are its planets, whose orbits are represented by the flat disc of the coin. On this scale, the diameter of our Milky Way galaxy will be about the size of the United States!