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Cosmology Questions and Answers (Q&A)

Astronomy is the study of items and things in the earth’s atmosphere. Scientists in astronomy study their properties that are physical or chemical. Astrophysics is the science that is part of astronomy but it is more specific in nature. It is the part of astronomy that looks at the behavior and actions of the items that float in space and the unknown items that float in space.

Astrophysicists gather information about these objects in space and analyzes them. When they gather the information, then they study it. Astronomy is on a larger scale than astrophysics because it deals with many more things about space like planets and black holes. In the future, we will have learned more about space and the universe.

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Cosmology is the study of the world and how the universe first began. It even discusses how the things in space relate and connect to the world. People have been studying space and cosmology since the ancient times. During ancient history, scientists would gather information by looking up into space and at the stars. They would design devices to use to get a better look at space.

The first noted time when someone wrote about cosmology would be in the Hindu ancient times by Rigveda around 1700 to 1100 BC. This person discussed the cycles that exist with the universe. Similar to the information given, Jain Agamas wrote information about the universe and its cycle in 500 AD. There was also information given during Babylonian times.

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The prefix cosmo refers to world and ology is the study of something. Therefore, cosmology is the study of the world. However, it is more than that. Cosmology covers many different sciences including physics and the things and aspects that surround space and the universe and how it affects the earth. It also affects the way the things in space came to be and originated.

Many cosmologists try to discover what is the big bang theory and what caused it. The universe seems to be the core of cosmology. Some famous scientists also learned about and wrote about cosmology including Albert Einstein, Edwin Hubble and Isaac Newton. Hubble may be the one who is closest to cosmology due to his last name. People associate him with the Hubble telescope.

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The first cosmologist, in fact, would be the first individual to study and record physical events and features beyond the known environs. We don't know the first person to do this, and it's most likely that there were several such innovative thinkers gazing into space around the same period. This would be most likely after that time when all energy was needed just to survive.

Early sailors were cosmologists of a kind in that they used the stars as guidance for their journeys, thereby recognizing that there was some pattern and information beyond the Earth. Getting to the time when human events could be recorded, the ancient Greeks made use of navigational knowledge.

disregarding the Greek use of mythology of a way of understanding the universe, let's take Anaxagoras of Clazomenae as the first cosmologist for he claimed that the Moon shines only through the light it reflects from the sun, and that that lunar eclipses are a result of the earth blocking the sunlight in its path to the moon. He deserved a Nobel prize but was serious centuries ahead of his time.

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These are closely related, with cosmology often one part of astro-physics generally. Astrophysics itself is a branch of astronomy that studies the physical or chemical properties of celestial bodies. Using laws of physics and chemistry it seeks to understand the birth, life and death of stars, planets, galaxies, nebulae and other objects in the universe. The crossover between this and cosmology is extensive.


Cosmology is the scientific study of the large scale properties of the universe as a whole. Therefore, this encompasses the forementioned study area of astro-physics but taking a wider-still view. I suppose it's the difference between regarding a feast (cosmology) and a table of festive foods, if that helps.

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That is a difficult question because some cosmologists were successful long ago during ancient history. It is difficult to evaluate their contributions based upon what they had access to. Aristotle was a cosmologist but people sometimes forget him because his contributions although significant were so long ago. Today, it would have to be Stephen Hawking. He gathered and analyzed data and information in order to make accurate predictions.

His theories have been deemed brilliant to the most top level scientists. He started at a young age and has proven theories through his work. Stephen Hawking continued his career of studying and learning about space until his death recently. However, he would probably have continued his work about space for years later if he was still alive.

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Most likely, Stephen Hawking is the greatest cosmologist of all time. He is known for making popular and accurate predictions. However, he is known for his science background including those about black holes in the universe. Some other topics that Hawking is known for include relativity, gravity, quantum mechanics, and radiation. In the 1990s, he discovered and wrote more about his black hole information paradox.

Many documentaries and movies have been made about Stephen Hawking and his findings. His research and studies began in the mid 1960s and lasted until he died in 2018. He wrote about physics and many papers about his findings in science. After his early death, people were upset by his death, but also upset that this brilliant mind would not be around.

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With study of our universe and beyond, matters defying ordinary observation, we are dependent upon theories for discovering new facts. If scientific, theories make testable predictions which, if they turn out to be wrong, would mean that the theory must be discarded. With regard to the Big Bang, some of those predictions have been tested, some to very high precision, and turned out to be correct.

This is thanks to work such as Hubble's Law - distant objects are moving away from us; the cosmic microwave background - as the universe gets smaller its temperature rises; the abundance of helium - whereas the missing part of the proof of Big Bang - cosmic inflation, has been impossible to test. If inflation turns out to be not falsifiable, this would make it impossible to test using the scientific method. This part remains a theory yet to be proved.

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Rocket science is a term that was coined years ago to describe a very difficult subject. People would say about something easy, “this isn’t rocket science.” However, rockets are part of space and the exploration of the universe. Therefore, the science of studying rocketry would be considered to very well be a part of cosmology. Cosmology is the study of the world and how the world plays a part with the universe and space.

Rockets are sent into space from earth to put things into orbit or to help astronauts learn about the planets, sun, black hole and other parts of space that can’t be studied by the people on earth. There are many different sciences other than rocket science that are a part of cosmology.

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Technically, YES! Cosmology attracts only the most genius of minds for a reason. Cosmology is a subject that is just in its nascent stages and it’ll be decades or even centuries before it becomes as extensive as physics or biology. It basically deals with the creation, continuity, and end of the universe. These three are not easily provable concepts.

Other than the universe, cosmology also deals with the working of space and time which again becomes a part of the unknown. Modern cosmology derives most of its knowledge with the Big Bang Theory as its backdrop or initiating point. If somehow, the Big Bang Theory is disproven, cosmology will have to start all over again.

Most cosmologists are philosophers with a scientific outlook. There are two types of cosmologists- one who give theories and the others who try to prove it.

Cosmology had been making headway, into a new age of discovery and proof due to the contributions of scientists like Stephen Hawking, but the theoretical and maybe literal existence of dark energy has stopped it dead in its tracks. Dark energy is to cosmology what quantum mechanics is to physics.

Hence, overall cosmology is mostly a speculative aspect of physics and its status as a science is often debated.Until and unless, cosmology doesn’t provide an enhanced model of the Big Bang Theory, which solves its criticisms, cosmology might not ever get out of that debate.

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