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Dark Matter and Dark Energy
- The Hidden 95% of the Universe
- Narrated by: Mark Cameron
- Length: 4 hrs and 46 mins
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Dark Matter and Dark Energy
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Publisher's Summary
All the matter and light we can see in the universe makes up a trivial five per cent of everything. The rest is hidden. This could be the biggest puzzle that science has ever faced.
Since the 1970s, astronomers have been aware that galaxies have far too little matter in them to account for the way they spin around: they should fly apart, but something concealed holds them together.
That ’something' is dark matter - invisible material in five times the quantity of the familiar stuff of stars and planets. By the 1990s we also knew that the expansion of the universe was accelerating. Something, named dark energy, is pushing it to expand faster and faster.
Across the universe, this requires enough energy that the equivalent mass would be nearly 14 times greater than all the visible material in existence. Brian Clegg explains this major conundrum in modern science and looks at how scientists are beginning to find solutions to it.
Critic Reviews
“'Clear and compact. It's hard to fault as a brief, easily digestible introduction to some of the biggest questions in the Universe.” (Giles Sparrow)
What listeners say about Dark Matter and Dark Energy
Average Customer RatingsReviews - Please select the tabs below to change the source of reviews.
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Overall3 out of 5 stars
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Performance1 out of 5 stars
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Story3 out of 5 stars
- Anonymous User
- 09-10-2020
Disappointing
I bought this book because I wanted to understand more about dark matter and dark energy but, after almost 5 hours of listening, the bottom line is that basically we have no idea. In fact, what I came away with is that there is a very good chance that dark matter/energy do not exist! In my opinion, the reader was very poor which was distracting from the content. He made mistakes and stumbled over words and phrases. But, most importantly, for a subject involving particle physics, I would have thought that being able to pronounce "nuclear" would have been very high on the list of requirements!
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2 people found this helpful