Dark Matter and Dark Energy :The Hidden 95% of the Universe - Hot Science
Dark Matter and Dark Energy :The Hidden 95% of the Universe - Hot Science
paperback
Published:
8 August, 2019
Popular Books by Brian Clegg
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Description
'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, BBC Four's The Sky at Night, Best astronomy and space books of 2019: 5/5
All the matter and light we can see in the universe makes up a trivial 5 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 fourteen 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.
More Details
| Type | Book |
|---|---|
| ISBN13 | 9781785785504 |
| ISBN10 | 1785785508 |
| Number Of Pages | 176 |
| Item Weight | 194 g |
| Product Dimensions | 127 x 198 x 13 mm |
| Publisher / Reseller | Icon Books |
| Format | paperback |
Media 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, BBC Sky at Night * Best astronomy and space books of 2019: 5/5 *
GoodReads Reviews
Author's Bio
Brian Clegg is a popular science writer whose Dice World and A Brief History of Infinity were both longlisted for the Royal Society Prize for Science Books. He has written for publications including Nature, The Times and BBC Focus.