Clegg Brian
Dark Matter And Dark Energy The Hidden 95% Of The Universe
Dark Matter And Dark Energy The Hidden 95% Of The Universe
Books
Regular price
$24.05 USD
Regular price
Sale price
$24.05 USD
Unit price
per
Shipping calculated at checkout.
Couldn't load pickup availability
Binding: Paperback
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.
Title: Dark Matter And Dark Energy The Hidden 95% Of The Universe
Author(s): Clegg Brian
Publisher: Icon Books
Barcode: 9781785785504
Pages: 176 Pages
Publication Date: 8/8/2019
Series: Hot Science
Category: Popular Astronomy & Space
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.
Title: Dark Matter And Dark Energy The Hidden 95% Of The Universe
Author(s): Clegg Brian
Publisher: Icon Books
Barcode: 9781785785504
Pages: 176 Pages
Publication Date: 8/8/2019
Series: Hot Science
Category: Popular Astronomy & Space
