How can astronomers view events that happened in the universe’s distant past?
Q: When was universe was created
A: Big Bang theory: This give the information about how universe began. According to Big Bang theory "…
Q: What is the evidence that dark matter exists?
A:
Q: The cosmic microwave background consists of: huge clouds of dark matter interspersed with equally…
A: Cosmic microwave background also known relic radiation. Cosmic microwave background is kind of…
Q: Why is it not possible to find out what's going on in our nearest star within the span of 24 hours?
A: Einstein's special relativity explains how speed affects mass, time, and space. As per special…
Q: Which factor has slowed down the expansion of the universe?
A: The expansion of the universe has slowed down because the object pull each other towards themselves…
Q: What is your reflection about the big bang theory?
A: Big bang theory assumes that universe was a dense point initially. And then it started to expand…
Q: Why is dark matter a problem?
A: Without dark matter stars would escape their galaxies and galaxy clusters would come unbound.…
Q: Gravity played an important role in the formation of solar systems, stars, and galaxies. What role…
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Q: So if our universe is about 15 billion years old. Do we think this because we can't see farther away…
A: We are known the age of universe. We are given that age of universe is about 15 billion years. There…
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: What was the maximum age of the universe predicted by Hubble's first estimate of the Hubble…
A: Hubble's law is the observation in the cosmology regarding the motion of the galaxies away from the…
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: How much of the universe appears to be the normal ordinary matter? Group of answer choices 50% 95%…
A: CONCEPT: Among the whole universe, only a small part is visible and the remaining part is…
Q: Explain the term Gravitational lensing?
A: Gravitational lensing is the term that is used to describe the bending and distortion in the path of…
Q: Tell me what is dark matter?
A: It is required to discuss about the dark matter.
Q: How can physics help us gain a greater understanding of the interconnected ness of everything in the…
A: The ness interconnection of the universe can be understand with the help of physics. The physics…
Q: What is the only thing that remains constant all over the universe
A: A constant is a quantity that is conserved with time. And and Invariant quantity is something that…
Q: How do gamma-ray bursts provide insights into the most energetic events in the universe?
A: Gamma-ray bursts (GRBs) are extremely energetic explosions that have been observed in distant…
Q: 17). If you were to live another 65 years and there was a starship ready to go right now, how fast…
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Q: What happened before the Big Bang?
A: The Answer is given below:
Q: What does the size difference of the irregularities in the background radiation tell us about the…
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Q: Is Hubble's law applicable in another planet or galaxy?
A: In this question we have to answer whether the Hubble's Law is applicable in another planet or…
Q: Hubble's Law Constant provides the following information about the observable universe: galaxies…
A: Hubble's law constant, often denoted as H₀ provides an estimate of the current rate of expansion of…
Q: When the universe was approximately one second old its size grew by a factor of 10 to the power of…
A: When the universe was approximately one second old its size grew by a factor of 10 to the power of…
Q: When do cosmologists think the universe began?
A: We have fundamental forces in nature. They are gravitational, electromagnetic, weak and strong…
Q: What was the maximum age of the universe predicted by Hubble's first estimate of the Hubble…
A: The first estimate for the Hubble constant H was 500 km/s/Mpc. The formula for the age of the…
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: Why the gravitational force is so important on the cosmic scale?
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Q: Why was the idea that the universe is eternal and unchanging abandoned?
A: The universe is eternal and unchanging abandoned because the universe was found to be expanding in…
Q: How does the Hubble constant relate to the age of the universe?
A: Hubble constant is defined as the proportionality constant between velocity of galaxies far from us…
Q: why is it reasonable to suspect that travel between stars is nearly impossible?
A: Somethings are impossible because they violate fundamental laws of nature. Today, we belive that…
Q: Why do we think that nothing, other than light, can travel faster than the speed of light?
A: According to the Einstein’s theory of relativity nothing can travel faster than light.
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: The presence of dark energy affects to the way the Universe is expanding. Select one: True False
A: Dark energy is a hypothetical form of energy which acts opposite to gravity. It occupies the…
Q: Explain why the speed of light is the maximum attainable
A: Hi , please find the answer
Q: What is the twin paradox?
A: the twin paradox is a thought experiment in special relativity involving identical twins, one of…
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…
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