Voyager Buffeted by Interstellar ‘Tsunami Waves’

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Since 2012, NASA's Voyager 1 spacecraft has experienced three 'tsunami waves' in interstellar space. The most recent, which reached the spacecraft earlier this year, is still propagating outward according to new data. It is the longest-lasting shock wave that researchers have seen in interstellar space. "Most people would have thought the interstellar medium would have