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A mini version of ITER, the largest nuclear fusion experiment in the world, is gearing up to launch fundamental fuel tests. The Joint European Torus (JET) in Great Britain is a brother of the ITER project in France: it has the same donut-shaped “tokomak” design as the French project, but one-tenth of its volume. In June, JET will try to fuse tritium and deuterium, the fuel mixture that ITER will use. ITER aims to create more power someday from a fusion reaction compared to the one introduced, which has never been demonstrated before.
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The hypothesis that there is a giant planet on the edge of the Solar System has been disproved by an analysis of distant and frozen objects. The results cast doubt on the evidence that the six trans-Neptunian objects (including Pluto) are under the gravitational pull of a huge planet. The research does not rule out the possibility of a ninth planet orbiting the Sun, and …
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