Voyager Robotic News
June 15, 2012 20:16:6
Data From NASA's Voyager 1 Point to Interstellar Future
By Source: NASA

PASADENA - Data from NASA's Voyager 1 spacecraft indicate that the venerable deep-space explorer has encountered a region in space where the intensity of charged particles from beyond our solar system has markedly increased. Voyager scientists looking at this rapid rise draw closer to an inevitable but historic conclusion – that humanity's first emissary to interstellar space is on the edge of our solar system.

"The laws of physics say that someday Voyager will become the first human-made object to enter interstellar space, but we still do not know exactly when that someday will be," said Ed Stone, Voyager project scientist at the California Institute of Technology in Pasadena. "The latest data indicate that we are clearly in a new region where things are changing more quickly. It is very exciting. We are approaching the solar system's frontier."

The data making the 16-hour-38 minute, 11.1-billion-mile (17.8-billion-kilometer), journey from Voyager 1 to antennas of NASA's Deep Space Network on Earth detail the number of charged particles measured by the two High Energy telescopes aboard the 34-year-old spacecraft. These energetic particles were generated when stars in our cosmic neighborhood went supernova.

"From January 2009 to January 2012, there had been a gradual increase of about 25 percent in the amount of galactic cosmic rays Voyager was encountering," said Stone. "More recently, we have seen very rapid escalation in that part of the energy spectrum. Beginning on May 7, the cosmic ray hits have increased five percent in a week and nine percent in a month."

This marked increase is one of a triad of data sets which need to make significant swings of the needle to indicate a new era in space exploration. The second important measure from the spacecraft's two telescopes is the intensity of energetic particles generated inside the heliosphere, the bubble of charged particles the sun blows around itself. While there has been a slow decline in the measurements of these energetic particles, they have not dropped off precipitously, which could be expected when Voyager breaks through the solar boundary.

The final data set that Voyager scientists believe will reveal a major change is the measurement in the direction of the magnetic field lines surrounding the spacecraft. While Voyager is still within the heliosphere, these field lines run east-west. When it passes into interstellar space, the team expects Voyager will find that the magnetic field lines orient in a more north-south direction. Such analysis will take weeks, and the Voyager team is currently crunching the numbers of its latest data set.

"When the Voyagers launched in 1977, the space age was all of 20 years old," said Stone. "Many of us on the team dreamed of reaching interstellar space, but we really had no way of knowing how long a journey it would be -- or if these two vehicles that we invested so much time and energy in would operate long enough to reach it.”

Launched in 1977, Voyager 1 and 2 are in good health. Voyager 2 is more than 9.1 billion miles (14.7 billion kilometers) away from the sun. Both are operating as part of the Voyager Interstellar Mission, an extended mission to explore the solar system outside the neighborhood of the outer planets and beyond. NASA's Voyagers are the two most distant active representatives of humanity and its desire to explore.

This artist's concept shows NASA's two Voyager spacecraft exploring a turbulent region of space known as the heliosheath, the outer shell of the bubble of charged particles around our sun. Image credit: NASA/JPL-Caltech

The Voyager spacecraft were built by NASA's Jet Propulsion Laboratory in Pasadena, Calif., which continues to operate both. JPL is a division of the California Institute of Technology. The Voyager missions are a part of the NASA Heliophysics System Observatory, sponsored by the Heliophysics Division of the Science Mission Directorate in Washington.

More Interactive Photography
Gale Crator InterActive First look crisp look around Gale Crator This 360-degree, full-resolution panorama from NASA's Curiosity rover shows the area all around...
Endeavour nose gear in OPF InterActive Endeavour nose gear in OPF This was shot from forward and underneath Space Shuttle Endeavour in the Orbiter Processing...
Endeavor engine compartment InterActive Endeavor engine compartment View into the Space Shuttle's engine compartment with the three main engines removed.
Endeavor engine compartment InterActive Endeavor engine compartment View into the Space Shuttle's engine compartment with the three main engines removed.
Endeavour Cargo Bay InterActive Endeavour Cargo Bay This image was shot from the forward end of Space Shuttle Endeavour's cargo ba as it sits in...
Interior view of the Space Shuttle Endeavour forward flight deck. InterActive Interior view of the Space Shuttle Endeavour forward flight deck. Interior view of the Space Shuttle Endeavour aft flight deck.
Endeavour Forward Flight Deck InterActive Endeavour Forward Flight Deck Interior view of the Space Shuttle Endeavour forward flight deck.
Atlas V with Mars Science Laboratory payload InterActive Atlas V with Mars Science Laboratory payload The rover Curiosity will carry the biggest, most advanced suite of instruments for scientific...
Curiosity rover InterActive Curiosity rover NASA's Mars Science Laboratory Curiosity rover, a mobile robot for investigating Mars' past or...
Curiosity rover InterActive Curiosity rover NASA's Mars Science Laboratory Curiosity rover, a mobile robot for investigating Mars' past or...
Gravity Recovery and Interior Laboratory InterActive GRAIL The Gravity Recovery and Interior Laboratory mission's primary science objectives will be to...
Atlas V AV-029 InterActive Atlas V AV-029 ULA Atlas V number AV-029 reaches launch pad on August 4th, 2011. In less than 1 day this Atlas...
Atlas V up close InterActive Atlas V up close Get to know the Atlas V up close. Explore the rivets in this 74.62 megapixel image of the Atlas...
JUNO Atlas V InterActive JUNO Atlas V ULA Atlas V with the JUNO probe sitting atop at Cape Canaveral Air Force Station is ready for...
Atlantis at wheels stop on runway 15 InterActive Atlantis on runway Space Shuttle Atlantis returned to Earth in the predawn hours of July 21st, 2011. Marking the...
Atlantis at wheels stop on runway 15 InterActive Atlantis at wheels stop on runway 15 Space Shuttle Atlantis returned to Earth in the predawn hours of July 21st, 2011. Marking the...
Atlantis and tower InterActive Atlantis and tower Space shuttle Atlantis waits to receive payload for the final space shuttle mission STS-135,...
Atlantis payload preparations InterActive Atlantis payload preparations Space shuttle Atlantis at pad 39A. The payload canister can be seen lifted in to position to...
Walk with the astronauts InterActive Walk with the astronauts A view of the 195ft level of the fixed service structure. This where the astronauts arrive at...
Last Space Shuttle prepares for launch InterActive Last Space Shuttle prepares for launch A close in look at space shuttle Atlantis on June 17th. Launch preparations are on going for...
The last space shuttle to be on the launch pad InterActive The last space shuttle to be on the launch pad Space shuttle Atlantis, the last space shuttle to flight begins launch prepartions at pad 39A...
Last space shuttle arrives at launch pad InterActive Last space shuttle arrives at launch pad Space shuttle Atlantis is seen here from the top of the rotating service structure the moring...
The last space shuttle has left the building InterActive The last space shuttle has left the building Space shuttle Atlantis rolls out of the Vehicle Assembly Building for the last time on the...
Space Shuttle Atlantis prepared to rollout to pad   InterActive Space Shuttle Atlantis prepared to rollout to pad Space shuttle Atlantis complete with the solid rocket boosters and external tank that will...
HiRes Atlantis hanging in VAB InterActive HiRes Atlantis hanging in VAB HiRes image of Space Shuttle Atlantis hanging in the Vehical Assembly Building. This shot was...
Atlantis vertical from VAB Level 5 InterActive Atlantis vertical from VAB Level 5 Space Shuttle Atlantis after being lifted into the verticle position before being mated to the...
Atlantis vertical InterActive Atlantis vertical Space Shuttle Atlantis hangs vertical before removing the rear hoist and lifting it for the...
Atlantis rolling vertical InterActive Atlantis rolling vertical Here Space Shuttle Atlantis is almost vertical being positioned to soon be mated to the...
Atlantis hanging in VAB InterActive Atlantis hanging in VAB Space Shuttle Atlantis is seen here hanging about 10 feet above the VAB floor. It has justed...
Endeavour at night InterActive Endeavour at night Space shuttle Endeavour seen here at night as launch preparation continue for the first launch...
Atlantis rolling over to VAB for final mission InterActive Atlantis rolling over to VAB for final mission Space Shuttle Atlantis rolling over the VAB for the last time. Atlantis is scheduled to be the...
Atlantis outside VAB for employee photos InterActive Atlantis outside VAB for employee photos Space shuttle Atlantis, the last space shuttle, pauses during rollover from the OPF to the VAB...
Hi Resolution image of the last space shuttle InterActive Hi Resolution image of the last space shuttle Hi Resolution composit image of the last space shuttle, Atlantis, as it sits atop the transport...
Atlantis in the VAB InterActive Atlantis in the VAB Nice 360 degree view of the VAB with Atlantis being preped for the Lift and Mate procedure
Atlantis on the sled in VAB InterActive Atlantis on the sled in VAB Explore the VAB with Space Shuttle Atlantis on the sled after rollover to the VAB jst before...
Atlantis being attached to sling InterActive Atlantis being attached to sling Full 360 degree panorama from inside the VAB as Space Shuttle Atlantis is attached to the sling...
Endeavour after RSS retraction InterActive Endeavour after RSS retraction Hi-Res image of Space Shuttle Endeavour on the launch pad 39A minutes after the RSS was...
The Mound STS-134 4/29 Attempt InterActive The Mound STS-134 4/29 Attempt This a 360 degree panorama from the mound of the KSC media center. This was the scence about an...
Alpha Magnetic Spectrometer (AMS) InterActive Alpha Magnetic Spectrometer (AMS) The Alpha Magnetic Spectrometer-2, a particle physics detector designed to search for various...
AMS in the SSPF InterActive AMS in the SSPF The Alpha Magnetic Spectrometer-2, a particle physics detector designed to search for various...
Here is Space Shuttle Endeavour just after sunrise InterActive Here is Space Shuttle Endeavour just after sunrise Here is Space Shuttle Endeavour just after sunrise the morning it arrived from the VAB. How...
Endeavour in the VAB InterActive Endeavour in the VAB Space Shuttle Endeavour sitting stacked and ready atop the crawler to rollout the launch pad.
Endeavour in the VAB InterActive Endeavour in the VAB Space Shuttle Endeavour sitting stacked and ready atop the crawler to rollout the launch pad.
Space Shuttle Discovery final towover InterActive Space Shuttle Discovery final towover View of Space Shuttle Discovery 4 hours after returning to Earth for the last time. Discovery...
Space Shuttle Discovery Final Launch InterActive Space Shuttle Discovery Final Launch This a 360 degree panorama taken 3 mile from the launch pad capturing the final lift off of...
Space shuttle Discovery final launch InterActive Space shuttle Discovery final launch This a 360 degree panorama taken 3 mile from the launch pad capturing the final lift off of...
Discovery at Night InterActive Discovery at Night This a panorama of Space Shuttle Discovery shortly after RSS retraction on 11/3/2010 preparing...
GRIP DC-8 Panorama InterActive GRIP DC-8 Panorama Interior of forward section of NASA GRIP aircraft while configured for studding hurricane...
GRIP DC-8 Interior InterActive GRIP DC-8 Interior Interior of forward section of NASA GRIP aircraft while configured for studding hurricane...
NASA GRIP DC-8 InterActive NASA GRIP DC-8 The NASA DC-8 is a four-engine jet transport that has been highly modified to support the...
Endeavour on pad InterActive Endeavour ready for launch HiRes image of Endeavour at Pad 39A
AMS-2 Antimatter Telescope InterActive AMS-2 Antimatter Telescope Explore the SSPF and ESA's Antimatter Telescope. 360 rotating,zoomable Panorama!
Spectacular ultra hi-rez interactive shot of the Space Shuttle Endeavour on the launch pad for the last time InterActive Explore LC-39A !! Spectacular ultra hi-rez interactive shot of the Space Shuttle Endeavour on the launch pad for...