The current scientific consensus of most cosmologists is that the ultimate fate of the universe depends on its overall shape, how much dark energy it contains and on the equation of state which determines how the dark energy density responds to the expansion of the universe. [3]

2024年2月20日 · What is the Ultimate Fate of the Universe? Just as Robert Frost imagined two possible fates for the Earth in his poem, cosmologists envision two possible fates for the universe: The evolution of the universe is determined by a struggle between the momentum of expansion and the pull (or push!) of gravity.

In physical cosmology, the Big Rip is a hypothetical cosmological model concerning the ultimate fate of the universe, in which the matter of the universe, from stars and galaxies to atoms and subatomic particles, and even spacetime itself, is progressively torn apart by the expansion of the universe at a certain time in the future, until ...

在 阿尔伯特·爱因斯坦 于1916年提出 广义相对论 之后，宇宙的终极命运在科学上成为能够探讨的问题，可以用广义相对论来描述有最大规模的宇宙尺度。 广义相对论的方程有许多不同的解，每个解都意味著一种可能的宇宙终极命运。 亚历山大·弗里德曼 在1922年就提出了一些如同 乔治·勒梅特 在1927年提出的 解 [2]。 其中有一些宇宙最初是从 奇点 开始膨胀，基本上，这就是 大爆炸。 在1931年， 爱德温·哈伯 出版他研究的结论：根据他对遥远星系 造父变星 的观测，宇宙是膨 …

2010年12月10日 · The study of cosmology uses the scientific method to understand the origin, evolution and ultimate fate of the entire Universe. Like any field of science, cosmology involves the formation of theories or hypotheses about the universe which make specific predictions for phenomena that can be tested with observations.

The ultimate fate of the universe depends on the amount of mass contained within it, that is, the mean density of the universe. There is a critical density, which if reached will be sufficient to just stop the expansion of the universe. This is similar to a ball thrown in the air; the Earth's gravity eventually stops the ball, and it begins to ...

This book describes what will ultimately happen to the contents of the universe. To understand the universe in the far future, we must first describe its present state and structure on the grand scale, and how its present properties arose. Dr Islam explains these topics in an accessible way in the first part of the book.

2018年12月11日 · The ultimate fate of universe depends on the density density of the universe. If the density of the universe is less than the critical density, then the universe will expand forever, like the green or blue curves in the graph above.

1. Introduction; 2. Our galaxy; 3. The large-scale structure of the universe; 4. Elementary particles - a preliminary look; 5. Is the universe open or closed? 6. Three ways for a star to die; 7. Black holes and quasars; 8. Galactic and supergalactic black holes; 9. A black hole is not forever; 10. Slow and subtle changes; 11.

A nontechnical work on the observed and theoretical processes underlying the existence of the universe is presented, with consideration given to the eventual culmination of all physical events. The structures and physical behavior of the Galaxy are discussed, as are the expansion of the universe, the basis of the Hubble constant, and redshift ...