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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 compared to dusty material native to Saturn.

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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