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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

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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 - The Hidden 95% of the Universe by
Dark Matter and Dark Energy - The Hidden 95% of the Universe by Brian Clegg $19.99 buy online or call us (+61) 3 9654 7400 from Hill of Content Melbourne,  The Search For 'Dark Matter' And 'Dark Energy' Just Got Interesting
Only about 5% of the universe consists of ordinary matter such as protons and leading scientists to assume there is some sort of matter hidden there that we can 't see. Meanwhile, dark energy explains our observation that the universe is these tantalising substances that make up a whopping 95% of our universe. Priyamvada Natarajan: Solving Dark Matter and Dark Energy - The
Dark energy is now understood to constitute 72 percent of the entire contents of the universe. (Of the remainder, dark matter is 23 percent, and atoms — the part  The World's Largest Atom Smasher Could Be Tweaked to Hunt 'Dark
a window into dark matter and dark energy, which together make up 95% of the universe. Dark matter exerts a gravitational pull on ordinary matter, and dark energy is thought to cause the universe's expansion to accelerate. For scientists looking for the hidden sector, all those particles are mere noise. The composition of the Universe | ESA/Hubble | ESA/Hubble
The riddle of what the ghostly dark matter is made of is still far from solved, but that passes through them lets astronomers deduce where the hidden mass lies. matter: it seems that dark energy makes almost 70% of the known Universe. Where Is All the Dark Energy and Dark Matter? | Space
nearly 95 percent of the universe but remain hidden from direct detection. The new dark matter and dark energy experiments narrowed the 

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