{pdf download} Dark Matter and Dark Energy: The Hidden 95% of the Universe by Brian Clegg

Dark Matter and Dark Energy: The Hidden 95% of the Universe by Brian Clegg

• Dark Matter and Dark Energy: The Hidden 95% of the Universe
• Brian Clegg
• Page: 176
• Format: pdf, ePub, mobi, fb2
• ISBN: 9781785785696
• Publisher: Icon Books, Ltd. UK

Dark Matter and Dark Energy: The Hidden 95% of the Universe

Download free ebooks for phone Dark Matter and Dark Energy: The Hidden 95% of the Universe by Brian Clegg 9781785785696 English version

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.

Dark Matter and Dark Energy – Icon Books
Dark Matter and Dark Energy (Paperback). The Hidden 95% of the Universe. Brian Clegg. Share this book. All the matter and light we can see in the universe 
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The authors of the study could calculate how much dark matter could have was a large proportion of hidden mass in the universe back in the 1930s, the rest is "ordinary" matter (4.9 percent) and dark energy (68.3 percent). If there had been 80-95% Missing Matter anywhere near the vicinity of the 
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Dark matter has never been directly observed and the nature of dark energy is almost completely mysterious, but even tracking down the 5% of 
Dark Matter and Dark Energy: The Hidden 95% of - Google Books
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 

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