
What is our universe called?
Answer
454.5k+ views
Hint: Everything that we are able to see around us forms a part of the universe. Our universe consists of various stars, galaxies, Nebula, black holes, planets, etc. All the matter that we are able to observe with the help of telescopes also forms a part of our universe.
Complete step-by-step answer:
Universe is a name given to all the matter around us.
Our universe is also called the cosmos. It is originally a greek word. In early days it was thought that our Galaxy constituted the entire universe. Now we now know the information that we live on planet Earth, which forms a part of the Solar system created by the gravitational pull of our sun and our Sun forms a tiny part of our Milky way galaxy. This galaxy is just one of billions which form a part of our universe. The need to understand the universe or cosmos around us gave rise to a critical field of science called cosmology.
Additional Information: A few theories suggest that our universe might not be the only universe. There might be multiple universes often called multiverses.
Note: When we talk of the universe, we often talk about the 'observable' universe. As the Big Bang happened 13.9 billion years ago, we are only able to observe the universe to the time after the big bang. This is so because light takes some time to travel from its source to us. If a celestial object is present at a distance of 10 Light year from us then light emitted by it 10 years ago is seen by us today. Therefore as we observe our universe, we observe it back in time and there is a limit to our observations because the galaxies/stars tend to move farther and farther apart.
Complete step-by-step answer:
Universe is a name given to all the matter around us.
Our universe is also called the cosmos. It is originally a greek word. In early days it was thought that our Galaxy constituted the entire universe. Now we now know the information that we live on planet Earth, which forms a part of the Solar system created by the gravitational pull of our sun and our Sun forms a tiny part of our Milky way galaxy. This galaxy is just one of billions which form a part of our universe. The need to understand the universe or cosmos around us gave rise to a critical field of science called cosmology.
Additional Information: A few theories suggest that our universe might not be the only universe. There might be multiple universes often called multiverses.
Note: When we talk of the universe, we often talk about the 'observable' universe. As the Big Bang happened 13.9 billion years ago, we are only able to observe the universe to the time after the big bang. This is so because light takes some time to travel from its source to us. If a celestial object is present at a distance of 10 Light year from us then light emitted by it 10 years ago is seen by us today. Therefore as we observe our universe, we observe it back in time and there is a limit to our observations because the galaxies/stars tend to move farther and farther apart.
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