Dark Matter, Dark Energy and Dark Gravity make life possible This book for the lay reader provides a summary of the latest astrophysical observational results and theoretical insights into what we know and what we hope to learn about dark matter, dark energy, and dark gravity.
How did the profound beauty of our Earth, our Solar System, our Milky Way galaxy and indeed our universe unfold? Dark matter, dark energy, and dark gravity have made all the difference in how the universe has developed, and have been key to creating the overall environment that makes life possible.
We have only recently developed the ability to begin unlocking their secrets, thus providing a deeper insight into how a universe of our type is possible.
It seems that because of dark matter, dark energy and dark (weak) gravity, our universe has the right attributes for the development of complex structure and the evolution of intelligent life that can engage in the quest to understand our world.
These dark or more hidden attributes of the cosmos have very good outcomes.
In particular, the existence of dark matter makes it easier to form complex structures, including galaxies, stars and planets through gravitational collapse of denser regions of the universe.
Planets are the most suitable abodes for the development of life.
Dark energy acts to extend the lifetime of the universe by counteracting gravity and driving continued expansion of the universe.
Even as far back as the 1930s there has been evidence that most of the matter in the universe was not visible via electromagnetic radiation (optical light, radio waves, etc.
By the last few decades of the 20th century, the case for a considerable amount of this dark matter was very strong.
It is the second largest contributor to the total mass-energy of the universe.
We don't know what it is and there are various candidates to explain it; nevertheless we see the gravitational effects of dark matter everywhere on the largest scales.
Recent observat.
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Createspace Independent Publishing Platform Dark matter, dark energy, dark gravity: enabling a universe that supports intelligent life, paperback/stephen c. perrenod
