|MadSci Network: Physics|
"An international team of astronomers using NASA's Hubble Space Telescope has created the first three dimensional map of the large-scale distribution of dark matter in the universe." For more, see http://www.nasa.gov/mission_pages/hubble/news/clumpy_darkmatter.html Space-time and dark matter are relevant to the study of gravity, but do not explain gravity. More on dark matter is located at http://www.space.com/scienceastronomy/astronomy/dark_matter_sidebar_010105.html Quantum field theory has it that the graviton mediates the force of gravity. Discovery of gravitons will move science farther down the road of understanding how the force of gravity is able to influence distant objects. A good reference for the graviton is at http://en.wikipedia.org/wiki/Graviton More on the graviton is located at http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/980319b.html An additional site to check is http://imagine.gsfc.nasa.gov/docs/ask_astro/relativity.html Thanks for your question. sid
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