The Sky Tonight

December 15, 2014

NASA Voyager: 'Tsunami Wave' Still Flies Through Interstellar Space
Pasadena CA (JPL) Dec 16, 2014
The "tsunami wave" that NASA's Voyager 1 spacecraft began experiencing earlier this year is still propagating outward, according to new results. It is the longest-lasting shock wave that researchers have seen in interstellar space. "Most people would have thought the interstellar medium would have been smooth and quiet. But these shock waves seem to be more common than we thought," said Don Gurnett, professor of physics at the University of Iowa in Iowa City. Gurnett presented the new data Monday, ... read more

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