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Saturn Spacecraft Samples Interstellar Dust

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Cassini at Saturn

Of the millions of dust grains Cassini has sampled at Saturn, a few dozen appear to have come from beyond our solar system. Scientists believe these special grains have interstellar origins because they moved much faster and in different directions compar

Credit: NASA/JPL-Caltech

NASA's Cassini spacecraft has detected the faint but distinct signature of dust coming from beyond our solar system.
From Jet Propulsion Laboratory/NASA
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