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NASA Voyager 1 Spacecraft has officially entered interstellar space, new data confirms

by William W. on July 8, 2014
NASA

New data has confirmed that NASA‘s Voyager 1 spacecraft has indeed entered into interstellar space.

“All is not quiet around Voyager,” said Don Gurnett of the University of Iowa, Iowa City, the principal investigator of the plasma wave instrument on Voyager, which collected the definitive evidence that Voyager 1 had left the sun’s heliosphere. “We’re excited to analyze these new data. So far, we can say that it confirms we are in interstellar space.”

In August of 2012 Voyager 1 was in the news when it was announced that the probe had left our heliosphere — the bubble of charged particles around the Sun.

“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.”

NASA – Why is it denser out there? The sun’s winds blow a bubble around it, pushing out against denser matter from other stars.

Now, the team has new readings from a third wave from the sun, first registered in March of this year. These data show that the density of the plasma is similar to what was measured previously, confirming the spacecraft is in interstellar space. Thanks to our sun’s rumblings, Voyager has the opportunity to listen to the singing of interstellar space — an otherwise silent place.

Voyager 1 and its twin, Voyager 2, were launched 16 days apart in 1977. Both spacecraft flew by Jupiter and Saturn. Voyager 2 also flew by Uranus and Neptune. Voyager 2, launched before Voyager 1, is the longest continuously operated spacecraft and is expected to enter interstellar space in a few years.

The Voyager spacecraft were built and continue to be operated by NASA’s Jet Propulsion Laboratory, in Pasadena, Calif. Caltech manages JPL for NASA. The Voyager missions are a part of NASA’s Heliophysics System Observatory, sponsored by the Heliophysics Division of the Science Mission Directorate at NASA Headquarters in Washington.

Source: NASA

William W.
I am an amateur astronomer with a focus on astrophotography and deep space objects. I have 15+ years in the web publishing business and over 20 years as a space enthusiast. I enjoy reading and writing about the amazing discoveries of brilliant scientists and engineers.
 
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