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PLtPjrfICkS Autore: Valeria I can't stand football <a href=" http://www.sfbbm.se/childrens-ibuprofen-dosing-chart.pdf ">ibuprofen acetaminophen liver</a> Light is affected by gravity. This means that light passing through a distant galaxy will be deflected. Called gravitational lenses, these distant galaxies can provide tests of Einstein's theory of general relativity and act as valuable tools. Gravitational lenses actually consist of two objects: one that is further away and supplies the light, and another that sits between us and the distant light source and whose gravity deflects the light. Astronomers can use these gravitational lenses to determine the mass of the matter that is bending the light, including the mass of dark matter. |
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