Only 4% of the universe is made of known material. Stars and gas in galaxies move so fast that astronomers have speculated that the gravity from a hypothetical invisible halo of dark matter is needed to keep galaxies together. However, a solid understanding of dark matter as well as direct evidence of its existence has remained elusive.
A research team made up of astronomers from around the world believes that the interactions between dark and ordinary matter could be more important and more complex than previously thought, and even speculate that dark matter might not exist and that the anomalous motions of stars in galaxies are due to a modification of gravity on extragalactic scales.
Daily Galaxy quotes researcher Benoit Famaey as saying, "The dark matter seems to 'know' how the visible matter is distributed. They seem to conspire with each other such that the gravity of the visible matter at the characteristic radius of the dark halo is always the same. "This is extremely surprising since one would rather expect the balance between visible and dark matter to strongly depend on the individual history of each galaxy.
In 2009, Hongsheng Zha told an international team of astronomers that he had found an unexpected link between dark matter and the visible stars and gas in galaxies that could revolutionize our current understanding of gravity. Zhao suggested that an unknown force is acting on dark matter.
They quote Zhao as saying, "Such a force might solve an even bigger mystery, known as 'dark energy', which is ruling the accelerated expansion of the Universe. A more radical solution is a revision of the laws of gravity first developed by Isaac Newton in 1687 and refined by Albert Einstein's theory of General Relativity in 1916. Einstein never fully decided whether his equation should add an omnipresent constant source, now called dark energy."
If we were able to understand and control gravity, it would revolutionize space travel, and enable the human species to express itself off planet, even reach the stars. Most scientists believe that, as long as we remain trapped on Earth, some planetary upheaval in the future will cause our extinction. 99% of all species that have ever lived have gone extinct.
The Master of the Key began his conversation with Whitley Strieber by saying that, because we don't understand gravity, we are trapped on Earth.
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