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earamsey
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Physicists say that space is expanding. Well, Einstein says that space and time can not be separated so I can assume that timespace is expanding. What does it mean for time to expand?
Time and space expansion refers to the idea that the universe is constantly expanding, both in terms of the physical distance between objects and the passage of time. This expansion was first observed by astronomer Edwin Hubble in the 1920s and has since been confirmed by numerous studies and experiments.
According to the widely accepted theory of cosmological expansion, the universe is expanding due to the force of dark energy, a mysterious form of energy that makes up about 70% of the universe. As the universe expands, objects within it, such as galaxies and stars, are carried along with it, causing the distance between them to increase.
Based on current scientific understanding, it is believed that time and space expansion will continue indefinitely, with the universe becoming increasingly larger and more spread out. Eventually, this expansion may lead to the "heat death" of the universe, where all matter and energy is spread out and can no longer sustain life or any other processes.
Yes, there is strong evidence for time and space expansion. One of the main pieces of evidence is the observed redshift of light from distant galaxies, which indicates that they are moving away from us and supports the idea of an expanding universe. Additionally, the cosmic microwave background radiation, a remnant of the Big Bang, also provides evidence for time and space expansion.
The Big Bang theory, which is the prevailing scientific explanation for the origin of the universe, is closely tied to the concept of time and space expansion. According to the Big Bang theory, the universe began as a single point of infinite density and has been expanding ever since. This expansion is what has led to the formation of galaxies, stars, and other structures in the universe.