Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
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- Multiverse is called a theory. It has been proposed to account for the apparent and uncanny fine tuning of our own universe. The idea of the multiverse is that there are infinite, distinct universes out there - all with distinct laws of nature and natural constants - and we live in just one of them. Using the accepted definition of the universe being all that there is (matter, space and energy), would you say that multiverse is a scientific theory?
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- Construct a timeline for the universe and indicate when various significant events occurred, from the beginning of the expansion to the formation of the Sun to the appearance of humans on Earth.arrow_forwardDescribe some possible futures for the universe that scientists have come up with. What property of the universe determines which of these possibilities is the correct one?arrow_forwardWhat evidence shows that the Universe is expanding? What evidence shows that the Universe began with a Big Bang?arrow_forward
- Is cosmology the study of the Universe, the observable universe, or both? How do you know?arrow_forwardWhat is dark energy and what evidence do astronomers have that it is an important component of the universe?arrow_forwardSince the time of Copernicus, each revolution in astronomy has moved humans farther from the center of the universe. Now it appears that we may not even be made of the most common form of matter. Trace the changes in scientific thought about the central nature of Earth, the Sun, and our Galaxy on a cosmic scale. Explain how the notion that most of the universe is made of dark matter continues this “Copernican tradition.”arrow_forward
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