• Einstein’s theory of relativity faces satellite test

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    CAYENNE: Einstein’s theory of general relativity is to be put to the test by a newly launched satellite in an experiment that could upend our understanding of physics. The French “Microscope” orbiter will try to poke a hole in one of Einstein’s most famous theories, which provides the basis for our modern understanding of gravity. Scientists will use the kit to measure how two different pieces of metal—one titanium and the other a platinum-rhodium alloy —behave in orbit. “In space, it is possible to study the relative motion of two bodies in almost perfect and permanent free fall aboard an orbiting satellite, shielded from perturbations encountered on Earth,” said Arianespace, which put the satellite into orbit on Monday.

    AFP

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