Dark Matter and Dark Energy: The Hidden 95% of the Universe
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.
First Glimpse of the Hidden Cosmos | Space
Dark matter and dark energy certainly seem significant: Scientists estimate that they amount to 95 percent of all the matter and energy in the
Wonders of Science - Featured Film: Dark Matter
Nearly 95% of the universe is made of invisible stuff that scientists cannot Scientists call this incredibly massive and invisible stuff dark matter and dark energy. about what hidden clues the universe's governing principles might reveal.
Dark Matter, Dark Energy: The Dark Side of the Universe - The Great
The rest of the contents of the cosmos is invisible to our current methods of These invisible components are dark matter and dark energy, the most eagerly
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All the matter and light we can see in the universe makes up a trivial 5 per cent of everything. Dark Matter and Dark Energy: The Hidden 95% of the Universe.
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Dark Matter and Dark Energy Don't Exist. New Theory Says the
Dark energy is thought to comprise roughly 68% of the known universe, and dark matter 27%. Yet, we only know about them in terms of gravity.
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Dark Matter and Dark Energy - Brian Clegg - Allen & Unwin NZ
The Hidden 95% of the Universe With dark matter and dark energy making up 95 per cent of reality, cosmologists have uncovered the biggest puzzle that
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