Place all of the following in order from earliest to the most recent: Dark energy begins acceleration of the expansion of the universe You study for your final in astronomy Last scattering of the Cosmic Microwave Background Radiation First stars and galaxies form Big Bang Universe becomes transparent (no longer opaque) aka photon decoupling time Inflationary Epoch Formation of first complex elements (hydrogen isotopes, helium & lithium)

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: What are the three important pieces of evidence that led scientists to accept the Big Bang as the…

A: The Big Bang model is one of the many theories that were developed to explain the birth of the…

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: How can astronomers view events that happened in the universe’s distant past?

A: We all know that time travel is not possible, so an astronomer can't go into the past using a time…

Q: What major factor determines the future of the universe? Why?

A: Earlier cosmologist believed that due to gravity of supermassive black holes and many other massive…

Q: How the universe expands?

A: The expansion of the universe is just the increase in distance between any two selected…

Q: Describe some of the characteristics of the universe that are explained by the standard Big Bang…

A: Given, Big Bang theory of universe

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: Theory predicts that the irregularities in the hot gas of the big bang should be how many degrees in…

A: The cosmologists analyze the irregularities within the intensity of the CMB using sophisticated…

Q: What happened before the Big Bang?

A: The Answer is given below:

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: What exactly is dark matter?

A: Particles that do not absorb, reflect, or emit light, hence cannot be detected by electromagnetic…

Q: Which of the following did NOT happen during the first few minutes after the Big Bang? matter and…

A: Solution: Given: Which of the following did NOT happen during the first few minutes after the Big…

Q: Helium is common element in the Universe. True/False

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: What evidence shows that the universe is flat

A: Exact shape of the universe can not be predicted.

Q: The Analysis of the Big Bang Theory.

A: Universe is the whole yonder which consists of many many miles of life both living and unliving. Its…

Q: how big is the universe in numbers

A: The universe is made up of all of space, time, and everything that exists within them, including all…

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 dark matter? (200 words)

A: Answer:Dark matter is a form of matter accounting 85% of the matter in the universe and about a…

Q: Was the Big Bang an explosion? Explain your answer.

A: the Big Bang wasn't an explosion that destroyed things.

Q: Please list 4 different forms of energy present in the universe?

A: Given that: Please list 4 different forms of energy present in the universe?

Q: How big is the universe

A: As of now the observable universe is about 13.7 billion light years across and it is expanding at…

Q: Which of the following is not an implication of Hubble’s law? a) The universe is expanding b) We…

A: Option b

Q: The light coming from stars is closer to red (long wavelength, low frequency) than we would expect.…

A: Introduction and concepts: The light coming from the stars is observed as a spectra. A spectra…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.