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NASA’s Voyager 1 still feels “Tsunami Wave” as it travels in Interstellar Space

 

Written by Elizabeth Landau
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – The Voyager 1 spacecraft has experienced three shock waves.

The most recent shock wave, first observed in February 2014, still appears to be going on.

One wave, previously reported, helped researchers determine that Voyager 1 had entered interstellar space.

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.

This artist’s concept shows NASA’s Voyager spacecraft against a backdrop of stars. (NASA/JPL-Caltech)

This artist’s concept shows NASA’s Voyager spacecraft against a backdrop of stars. (NASA/JPL-Caltech)

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NASA’s Voyager 1 spacecraft senses Tsunami Waves from our Sun in Interstellar Space

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Voyager 1 spacecraft has experienced a new “tsunami wave” from the sun as it sails through interstellar space. Such waves are what led scientists to the conclusion, in the fall of 2013, that Voyager had indeed left our sun’s bubble, entering a new frontier.

“Normally, interstellar space is like a quiet lake,” said Ed Stone of the California Institute of Technology in Pasadena, California, the mission’s project scientist since 1972. “But when our sun has a burst, it sends a shock wave outward that reaches Voyager about a year later. The wave causes the plasma surrounding the spacecraft to sing.”

The Space Between: This artist's concept shows the Voyager 1 spacecraft entering the space between stars. Interstellar space is dominated by plasma, ionized gas (illustrated here as brownish haze), that was thrown off by giant stars millions of years ago. (NASA/JPL-Caltech)

The Space Between: This artist’s concept shows the Voyager 1 spacecraft entering the space between stars. Interstellar space is dominated by plasma, ionized gas (illustrated here as brownish haze), that was thrown off by giant stars millions of years ago. (NASA/JPL-Caltech)

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