Describe the Observable Universe carefully and in details.
Q: Scientific models are often built in stages or layers, starting with a single idea. Which idea…
A: The Big Bang is a cosmological model of the observable universe that describes how the cosmos…
Q: What is dark matter, and what evidence exists for it? What effect does dark energy have on the…
A:
Q: What has occurred after the Big Bang? Objects in the universe have reached a critical density.…
A: The big bang is how astronomers describe the way the universe started. It is the vision that the…
Q: What is the evidence that the universe was very uniform during its first 400,000 years?
A: The universe was formed from a big explosion called Big Bang. In the beginning, everything was…
Q: Calculate the age of the universe when its temperature was 10¹¹ K.
A: The universe was once part of a singularity of very high density and temperature. All the forces and…
Q: Define the term 'The Nature of Dark Matter' this term is from physics and how does it work.
A: The term 'The Nature of Dark Matter' refers to the characteristics and properties of a hypothetical…
Q: How do we measure Dark Matter?
A: Two methods were used by DES scientists to measure dark matter. Firstly, maps of galaxy positions as…
Q: Read the questions slowly and answer with precise and long details about each of the questions.…
A: The Whirlpool Galaxy, also known as Messier 51 or M51, is a spiral galaxy located in the…
Q: What is the the steady-state theory of the universe, and why was it abandoned? What theory do we…
A: A per the Steady-State theory, the universe is always expanding but it is maintaining a constant…
Q: Estimate the temperature of the universe when it was approximately 1 minutes old
A: Our universe is thought to be formed from a singularity of infinite density and temperature. It…
Q: State three pieces of evidence that support the idea that the Universe began in a hot Big Bang, and…
A: Approximately 13.7 billion years ago, all the matter and energy in the universe were created in an…
Q: What is the evidence that the universe was very uniform during its first 400,000 years?
A: The evidence of the uniform nature is explained by particle physics. Before the formation of the…
Q: What was the lowest temperature for photons to be able to produce 0 particles in the early universe?…
A: Given: kT=mc2
Q: What is dark matter and how do we know it exists?
A: Dark matter is the invisible form of matter which can not be directly detected but its effect can be…
Q: Describe what is meant by Olbers’ paradox. Explain how it is solved by our modern understanding of…
A: Olbers' paradox explains the dark effect of the sky. It is also known as the dark night sky paradox.…
Q: Briefly discuss and compare the three general types of galaxies.
A: We need to discuss and compare the three general types of galaxies.
Q: Describe the age and temperature of stars that make up spiral galaxies and their location.
A: A galaxy can be bombarded by other, smaller galaxies. Even if a galaxy is isolated, internal…
Q: Describe the Big Bang theory. What evidence supports this theory, and what are its implications for…
A: The Big Bang theory is the leading cosmological model that explains the origin and evolution of the…
Q: Calculate the age of the universe when the temperature was 10¹ K.
A: The age of the universe when the temperature was 1013 K. Given, TemperatureT=1013 K
Q: Doppler-shift technology can be used to determine a star's technology has provided evidence that the…
A: Doppler shift is used to determine whether a star is moving towards us or moving away from us.
Q: 29. Which of the following statements best describes the distribution of galaxies in the universe?…
A: A galaxy is a massive clump of gas, dust, and billions of stars and their solar systems held…
Q: D
A: Solution: The four model are as follows, Critical Accelerating Coasting Recollapsing The present…
Q: After the Big Bang the Universe expanded and cooled. What was the temperature of the Universe when…
A: All of the universe's matter and energy were once concentrated in a singularity with infinite…
Q: What is the concept of dark matter, and what evidence suggests its existence?
A: Introduction:The predictions of the general theory of relativity fall short in explaining the…
Q: We believe that the big bang occurred 13.8 billion years ago. Give 3 reasons why scientists believe…
A: There are several lines of evidence that support the idea that the universe is 13.8 billion years…
Q: Astronomy Question: Read the questions slowly and answer with precise and long details about each…
A: Read the questions slowly and answer with precise and long details about each of the questions.…
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- Hubble's galaxy classification diagram (the "tuning fork") O suggests the existence of black holes O shows how galaxies evolve from one form to another O relates galaxies according to their shapes, but not according to any evolutionary status O explains active galactic nuclei EGOAssume that a typical galaxy contains about 200 billion stars and that there are more than 150 billion galaxies in the known universe. Estimate the total number of stars in the universe.The discovery of the dark energy was a surprise because astrophysicists generally assumed that the expansion would be slowing down. Select one: True False
- TRUE OR FALSE: In an unbounded universe, all hydrogen will be used up in about a trillion yearsFor the graph shown above, a) what quantity would you label the y-axis with if the distance is between galaxies and the Earth? Explain your answer. Think through what we know is happening, motion-wise, out there in the galaxy. b) Also explain why you think there are dots and a solid line, on the graph.Why is dark energy required to explain the universe as we see it today according to the Big Bang model of the universe? 9