What if the Andromeda galaxy were to disappear How long before we would notice?
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A: The Big Bang model is one of the many theories that were developed to explain the birth of the…
Q: How do physicists measure the expansion rate of the universe?
A: How do physicists measure the expansion rate of the universe?
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Q: When we observe the most distant galaxies what are we looking at?
A: Question: When we observe the most Distant galaxies what are we looking at.
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Q: If a galaxy is 9.3 Mpc away from Earth and recedes at 508 km/s, what is H, (in km/s/Mpc)? |km/s/Mpc…
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Q: Calculate the age of the universe for the following Hubble's constant, 200 1... - N (d) 20 km/s/Mpc
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Q: What is milky way ?
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Q: How do we know andromeda galaxy is moving towards us?
A: Andromeda Galaxy is the closest galaxy to Milky Way at 2.5 million light-years. Unlike other…
Q: If the sun is 4.6 billion years old, how many times has it orbited the Milky Way? (The sun is 8,300…
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Q: Briefly discuss and compare the three general types of galaxies.
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Q: If you find a galaxy that is the same size and mass as our Milky Way Galaxy, what orbital velocity…
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Q: How do we know galaxies are moving away from us?
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What if the Andromeda galaxy were to disappear How long before we would notice?
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- Was the Big Bang an explosion? Explain your answer.To what extent do astronomers have the ability to see into the history of the universe?With the aid of one or more diagram, explain how observations of the CMB can be used to determine whether or not space is flat, positively curved or negatively curved. Describe two pieces of evidence that have led to the suggestion that the Universe contains Dark Energy.
- billion .stars in the Milky Way 100 and 300 O 100 and 400 O 100 and 200 O 100 and 500 O No one of the other options O There are betweenWhat evidence has been found that suggests a black hole at the center of our galaxy?In the reading, you were told that there were roughly 10,000 galaxies in the image of the Hubble Ultra Deep Field alone. The image is roughly 10 square arcminutes and there are roughly 1.5*10^8 square arcminutes composing the entire sky. With that in mind and assuming that the Hubble Ultra Deep Field represents an average part of the sky, roughly how many galaxies may exist in the observable universe? (Please include commas for every factor of 1,000; for example 2,343,567,890)
- Please list 4 different forms of energy present in the universe?Your friends are talking about Olber's Paradox: Friend 1: When the universe was quite young, it was also quite small, and therefore light was trapped inside the universe. This is why we don't see light from the edge of the universe in every direction. Friend 2: No, Olber's Paradox describes only light from stars, not from galaxies, and why you can't use light from distant stars to see at night. Friend 3: You're both right and you're both wrong. The paradox concerns itself with the expansion of the universe, and explains why light from the early universe was able to be released. Are any of them right, in part or in whole?If all the distant galaxies are moving away from us, explain why we are not at the center of the universe.
- The Milky Way grew through merging with many smaller galaxies. What are the observational signatures of this process? O The motion of old stars in the bulge and halo of our galaxy are randomly orientated, meaning they were formed from collisions of small, accreted, galaxies all on different paths. O The ordered motion of the bulge / halo stars means that they came from many objects. The random motions of stars in the disk means it was formed from collisions of small, accreted, galaxies. O The motion of young stars in the disk are all in the same direction, meaning they came in as seperate objects.For 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.T/ F The distance unit best for interstellar distances is the light-year. ___ The distance unit best for intergalactic distances is the mega-parsec. ___