Once the spacecraft's antenna is realigned with Earth, communications should resume.

The plan will keep Voyager 2's science instruments turned on a few years longer than previously anticipated, enabling yet more revelations from interstellar space.

Stone's remarkable tenure on NASA's longest-operating mission spans decades of historic discoveries and firsts.

A critical system aboard the probe was sending garbled data about its status. Engineers have fixed the issue but are still seeking the root cause.

A critical system aboard the probe was sending garbled data about its status. Engineers have fixed the issue but are still seeking the root cause.

Launched in 1977, the twin Voyager probes are NASA's longest-operating mission and the only spacecraft ever to explore interstellar space.

While the spacecraft continues to return science data and otherwise operate as normal, the mission team is searching for the source of a system data issue.

The first launch of a radioisotope power system (RPS) by the United States 60 years ago in June 1961 led to decades of historic RPS-powered missions by NASA.

In the sparse collection of atoms that fills interstellar space, Voyager 1 has measured a long-lasting series of waves where it previously only detected sporadic bursts.

The only radio antenna that can command the 43-year-old spacecraft has been offline since March as it gets new hardware, but work is on track to wrap up in February.

Used for communicating with distant spacecraft, a massive radio antenna is being retrofitted to prepare it for a busy future of solar system exploration.

The ice giant Uranus appears to be losing a bit of its atmosphere to space, perhaps siphoned away by the planet's magnetic field.

The antenna enhancements will improve future spacecraft communications, but during the upgrades, Voyager 2 will not be able to receive new commands from Earth.

The spacecraft's science instruments were turned off by a fault protection routine, which allows the spacecraft to automatically take actions to protect itself.

Five new research papers detail Voyager 2's observations since it exited the heliosphere, or the protective bubble of particles and magnetic fields created by our Sun.

Humanity's first and (so far) last visit to the outermost giant planet in our solar system was a monumental event for scientists and the public alike.

To manage Voyager 2's dwindling power supply, engineers recently shut off one instrument's primary heater. So far, the cooled instrument continues to return data.

The prestigious prize has been given to Caltech's Ed Stone, former director of JPL and the long-time project scientist for NASA's Voyager mission.

For the second time in history, a human-made object has reached the space between the stars.

Voyager Project Scientist Ed Stone and other mission team members gave a framed copy of an iconic Voyager 1 solar system image that includes Earth as a "Pale Blue Dot" to President George H.W. Bush on June 7, 1990. The presentation was made at the White House in the Oval Office.

NASA's Voyager 2 probe, currently on a journey toward interstellar space, has detected an increase in cosmic rays that originate outside our solar system.

The Voyagers have been featured in many movies, TV shows and songs during the course of their epic 40-year journeys.

The Voyager team is able to use a set of four backup thrusters, dormant since 1980, for orienting the spacecraft.

NASA and the Smithsonian National Air and Space Museum will celebrate 40 years of the Voyager 1 and 2 spacecraft with a public event at 12:30 p.m. EDT, Tuesday, Sept. 5.

In honor of the Voyager 40th anniversary, team members and enthusiasts shared their memories. The era of exploration for Voyager continues even now, as showcased in a video about the mission.

Over the mission's 40 years, NASA's Voyager spacecraft have paved the way for modern deep space communications.

Few missions can match the achievements of NASA's groundbreaking Voyager 1 and 2 spacecraft during their 40 years of exploration. Here's a short list of their major accomplishments to date.

Humanity's farthest and longest-lived spacecraft, Voyager 1 and 2, achieve 40 years of operation and exploration this August and September. Despite their vast distance, they continue to communicate with NASA daily, still probing the final frontier.

New data from three NASA missions show that the heliosphere — the bubble of the sun's magnetic influence that surrounds the inner solar system — may be much more compact and rounded than previously thought.

NASA's Voyager 2 spacecraft made its closest approach to Saturn 35 years ago. The Cassini mission has followed up on many of Voyager's discoveries.

Looking back at the first and only encounter with this mysterious planet (so far).

A study provides new insights about the magnetic field of the interstellar medium, using data from Voyager 1 and other spacecraft.

NASA's Voyager 1 spacecraft showed its love for the solar system, including Earth, with these images on Feb. 14, 1990.

The "tsunami wave" that NASA's Voyager 1 spacecraft began experiencing earlier this year is still propagating outward, according to new results.

August 25, 1989: Neptune is in view. It is the middle of the night and everything is happening fast at NASA's Jet Propulsion Laboratory in Pasadena, California.

NASA's Voyager 2 spacecraft gave humanity its first close-up look at Neptune and its moon Triton in the summer of 1989.

NASA's Voyager Project Scientist Ed Stone responds to an alternate model for the interaction between the heliosphere and the interstellar medium.

Ed Stone, project scientist of NASA's Voyager mission since 1972, and former director of NASA's Jet Propulsion Laboratory, Pasadena, California, was honored with a lifetime achievement award on Wednesday from the American Astronautical Society.

NASA's Voyager has experienced more "tsunami waves" from the sun -- the same kind that led to the realization last year that the spacecraft had entered interstellar space.

As if NASA's Voyager mission didn't have enough firsts in its 36-year journey, what with sending the first spacecraft to Uranus, Neptune and, most recently, interstellar space!

Why the debate about if and when Voyager 1 reached interstellar space is so complicated.

The NASA spacecraft, which rose from Earth on a September morning 36 years ago, has traveled farther than anyone, or anything, in history. Now Voyager 1 is in the space between the stars.

NASA's Voyager 1 spacecraft officially is the first human-made object to venture into interstellar space.

Space scientist Dr. Edward C. Stone, professor of physics at the California Institute of Technology and former director of the NASA Jet Propulsion Laboratory, has been awarded the 2013 Howard Hughes Memorial Award by the Aero Club of Southern California.

NASA's Voyager Project Scientist Ed Stone comments on competing models of Voyager 1's position relative to interstellar space.

A newly published paper argues that NASA's Voyager 1 spacecraft has already entered interstellar space.

Data from Voyager 1, now more than 11 billion miles (18 billion kilometers) from the sun, suggest the spacecraft is closer to becoming the first human-made object to reach interstellar space.

A gauge on the Voyager home page, https://voyager.jpl.nasa.gov, tracks levels of two of the three key signs scientists believe will appear when the spacecraft leave our solar neighborhood and enter interstellar space.

The consensus of the Voyager science team is that Voyager 1 has not yet reached interstellar space.

NASA's Voyager 1 spacecraft has entered a new region at the far reaches of our solar system that scientists feel is the final area the spacecraft has to cross before reaching interstellar space.

With two spacecraft on the cusp of interstellar space, NASA's Voyager mission is honored by Popular Mechanics.

Thirty-five years ago today, NASA's Voyager 1 spacecraft launched on its mission of exploration. JPL hosted a birthday party in its honor

Thirty-five years ago today, NASA's Voyager 2 spacecraft, the first Voyager spacecraft to launch, departed on a journey that would make it the only spacecraft to visit Uranus and Neptune and the longest-operating NASA spacecraft ever.

Two of three key signs of changes expected to occur at the boundary of interstellar space have changed faster than at any other time in the last seven years, according to new data from NASA's Voyager 1 spacecraft.

New data from NASA's Voyager 1 indicate that the spacecraft is drawing ever closer to exiting our solar system and entering interstellar space.

The heater shut-off is a step in the careful management of diminishing electrical power.

NASA's Voyager 1 spacecraft has entered a new region between our solar system and interstellar space.

NASA's Voyager 2 has successfully switched to the backup set of thrusters that controls the roll of the spacecraft.

NASA's Deep Space Network personnel sent commands to the Voyager 2 spacecraft on Nov. 4th to switch to the backup set of thrusters that controls the roll of the spacecraft.

Data from NASA's Voyager and Cassini spacecraft suggest Voyager could reach the space between stars sooner than previously thought.

NASA's Voyager spacecraft suggest the edge of our solar system may not be smooth, but filled with a turbulent sea of magnetic bubbles.

More than 30 years after they left Earth, NASA's twin Voyager probes are now at the edge of the solar system. Not only that, they're still working. And with each passing day they are beaming back a message that, to scientists, is both unsettling and thrilling.

Here are five facts about NASA's twin Voyager 1 and 2 spacecraft, the longest continuously-operating spacecraft in deep space.

In which direction is the sun's stream of charged particles banking when it nears the edge of the solar system?

As NASA's Voyager 2 spacecraft made the only close approach to date of our seventh planet, the Voyager team gathered to pore over the data coming in.

The 33-year odyssey of NASA's Voyager 1 spacecraft has reached a distant point at the edge of our solar system where there is no outward motion of solar wind.

Ed Stone, project scientist for NASA's Voyager mission, remembers the first time he saw the kinks in one of Saturn's narrowest rings.

As NASA's two Voyager spacecraft hurtle towards the edge of our solar system, a new project manager will shepherd the spacecraft into this unexplored territory.

On June 28, 2010, Voyager 2 will have been operating continuously for 12,000 days since its launch on August 5, 1977.

Engineers successfully reset a computer onboard Voyager 2 that caused an unexpected data pattern shift, and the spacecraft resumed sending properly formatted science data back to Earth on Sunday, May 23.

Twenty years ago on February 14, NASA's Voyager 1 spacecraft had sailed beyond the outermost planet in our solar system and turned its camera inward.

Scientists using data from NASA's Voyager 2 spacecraft have observed the bubble of solar wind surrounding the solar system is not round, but has a squashed shape.

The twin Voyager spacecraft, launched in 1977 to travel to and explore Jupiter, Saturn, Uranus and Neptune, have made many intriguing discoveries, including a possible ocean of liquid water on one of Jupiter's moons.

NASA's Voyager 2 spacecraft has followed its twin, Voyager 1, into the solar system's final frontier, a vast region at the edge of our solar system where the solar wind runs up against the thin gas between the stars.

NASA's Voyager 2 spacecraft has followed its twin Voyager 1 into the solar system's final frontier, a vast region at the edge of our solar system where the solar wind runs up against the thin gas between the stars.

From hurricane-like storms at Jupiter to the final frontier of the solar system, the twin Voyager spacecraft have returned a wealth of data during their 30-year journey.

NASA's two venerable Voyager spacecraft are celebrating three decades of flight as they head toward interstellar space. Their ongoing odysseys mark an unprecedented and historic accomplishment.

A mission that was supposed to last just five years is celebrating its 30th anniversary this fall.

Voyager 1, already the most distant human-made object in the cosmos, reaches 100 astronomical units from the sun on Tuesday. That means the spacecraft, which launched three decades ago, will be 100 times more distant from the sun than Earth is.

NASA's twin Voyager spacecraft are beaming back new information about the final frontier of our solar system, including evidence of "potholes" in the turbulent zone near the edge. New findings are being presented this week at the American Geophysical Union conference in Baltimore.

A trio of surprise discoveries from NASA's Voyager 1 spacecraft reveals intriguing new information about our solar system's final frontier.

To envision the Sun's presence in the Milky Way galaxy, think of a ship plowing through the ocean, being tossed by currents.

NASA's Voyager 1 spacecraft has entered the solar system's final frontier, a vast, turbulent expanse where the Sun's influence ends and the solar wind crashes into the thin gas between stars.

The intrepid twin Voyager spacecraft, launched about two weeks apart in the summer of 1977 and now heading out of the solar system, continue making history.

The spacecraft is nearly 9 billion miles from the sun, at the edge of our solar system. It's quiet out there, dark and uneventful.

Had Shakespeare been a solar physicist, he may have written, 'hell hath no fury like the Sun'.

NASA's venerable Voyager 1 spacecraft, built and operated by NASA's Jet Propulsion Laboratory, Pasadena, Calif., is about to make history again.

Scientists have a new explanation for weird movements of two small moons that shepherd one of Saturn's rings: Pandora, which keeps the narrow F ring from spreading outward, and Prometheus, which rides herd along the same ring's inner edge.

Two free public programs in Pasadena next week will present highlights of the scientific bonanza from NASA's twin Voyager spacecraft, launched 25 years ago and still going strong in one of human history's greatest missions of exploration.

If you could toss a bottle out into space, what message would you seal into it for anyone -- or any thing -- to open some day far away from our solar system?

A quarter-century after NASA's twin Voyager spacecraft departed Earth to visit outer planets, the historic mission is flying a race against time.

Astronauts can make service visits to the Earth-orbiting Hubble Space Telescope, but what do you do if the spacecraft needing a replacement part is the farthest human-made object from Earth, more than twice as distant as Pluto?

What do you do if a spacecraft needing a replacement part is the farthest human-made object from Earth, more than twice as distant as Pluto?

Bright, flat terrain in long swaths on the surface of Jupiter's icy moon Ganymede may testify that water or slush emerged there about a billion years ago, say planetary scientists who have combined stereo images from NASA's Galileo and Voyager missions to examine provocative features on that moon.

A NASA spacecraft headed out of the solar system could reach the first main feature of the boundary between our solar system and interstellar space within three years.

The Voyager 2 spacecraft, now on the outer fringes of the solar system, was returned to normal flight operations Saturday, November 14.

In a dark, cold, vacant neighborhood near the very edge of our solar system, the Voyager 1 spacecraft is set to break another record.

George P. Textor, the project manager of the Voyager Interstellar Mission, will retire from JPL on December 31.

Twenty years after their launch and long after their planetary reconnaissance flybys were completed, both Voyager spacecraft are now gaining on another milestone -- crossing that invisible boundary that separates our solar system from interstellar space, the heliopause.

"A Celebration of JPL: the 20th Anniversary of the Voyager Launches" will be the theme for a free public presentation to be held at 7 p.m., Thursday, June 19, in JPL's von Karman Auditorium, 4800 Oak Grove Drive, Pasadena. Seating is on a first-come, first-served basis.

Nearly 15 years after they left home, the Voyager 1 and 2 spacecraft have discovered the first direct evidence of the long-sought-after heliopause -- the boundary that separates Earth's solar system from interstellar space.

More than two years after Voyager 2 looked Neptune's Great Dark Spot in the eye and darted past the frozen surface of its moon Triton, both Voyager spacecraft are continuing to return data about interplanetary space and some of our stellar neighbors near the edges of the Milky Way.

NASA's Voyager 1 spacecraft, having completed its mission along with Voyager 2 to explore the outer planets, will use its cameras February 13-14 to take an unprecedented family portrait of most of the planets in our solar system.

Science papers and poster presentations on Voyager's encounter with Neptune were scheduled Dec. 4-5, the first two days of the 5-day 1989 Fall Meeting of the American Geophysical Union at San Francisco.

Triton, the large frozen moon of Neptune, has surface that apparently undergoes regeneration as do Jupiter's moons Europa and Io, Voyager 2 scientists said.

Voyager Project Manager Norman R. Haynes has been appointed Deputy Assistant Laboratory Director of JPL's Office of Flight Projects, and Haynes' deputy, George P. Textor, has been named Voyager Project Manager.

NASA's Voyager 1 spacecraft experienced an interruption of its telemetry signal between Monday afternoon and Tuesday midnight, and Wednesday resumed normal communications with Earth.

Five-mile-tall, geyser-like plume of dark material has been discovered erupting from the surface of Neptune's moon Triton in one of the images returned last month to the Jet Propulsion Laboratory, Pasadena, Calif., by NASA's Voyager 2 spacecraft.

NASA's Voyager 2 spacecraft has detected intense radio emissions from Neptune, indicating that the planet has magnetic field.

A tracking station in Japan has been added to the network of giant antennas trained on Voyager 2 during its flyby of Neptune on August 24-25 to help the spacecraft mission's radio science experiment.

News updates on Voyager 2's encounter with Neptune will be available to the public during late August on special telephone numbers from the Jet Propulsion Laboratory.

Images from the Voyager 2 spacecraft have revealed three additional new moons in orbit around Neptune, Voyager imaging team scientists announced today.

A new moon has been discovered orbiting Neptune, scientists on the Voyager Project at NASA's Jet Propulsion Laboratory (JPL), Pasadena, Calif., announced today.

NASA's Voyager 2 spacecraft today entered the observatory phase of its flyby of Neptune, signaling the beginning of its final planetary encounter after nearly 12 years of exploring the outer solar system.

NASA's Voyager 2 spacecraft, only four months away from its flyby of the planet Neptune, today completed one of the last major change-of-course maneuvers it will make before reaching the planet in August.

NASA's Voyager spacecraft imaging science team has found two of the long-sought-after ring arcs, or partial rings, thought to exist around Neptune.

NASA's Voyager 2 spacecraft, now less than year away from its encounter with the planet Neptune, successfully completed critical change-of-course maneuver today that will bring Voyager 10,000 kilometers (6,200 miles) closer to the planet during its Neptune flyby next summer.

The Rank Prize for Optoelectronics was awarded in London today (Mar. 14) to two JPL engineers and former JPL contractor in recognition of their work on vidicon cameras, such as those carried on the Voyager spacecraft mission to the outer planets.

With one of its two spacecraft en route to distant Neptune and the other exploring the outer solar system, the Voyager Mission celebrates its 10th anniversary of launch on Aug. 20.

NASA's two Voyager spacecraft, exploring different areas of the solar system more than two billion miles from Earth, have provided the most precise measurements yet of new species of cosmic ray particles, Voyager project scientist Dr. Edward Stone said.

For the second time in its 10-year history, the Voyager Project at the Jet Propulsion Laboratory, Pasadena, Calif., has been named the winner of the Nelson P. Jackson Aerospace Award by the National Space Club. The award honors the engineering expertise that resulted in the Voyager spacecraft missions to Jupiter, Saturn and Uranus.

NASA's highest honors were awarded in ceremony today at JPL to more than 70 indivduals and teams for their professional contributions to the successful Voyager spacecraft mission to Uranus.

NASA's Voyager 2, departing from its Jan. 24 encounter with Uranus, has undergone major course correction to prepare the spacecraft for its 1989 flyby of the planet Neptune.

NASA's Voyager 2 spacecraft has found six additional small moons in orbit around the planet Uranus, doubling the number of Uranian satellites known.

A new moon orbiting the planet Uranus has been discovered in images taken by NASA's Voyager 2 spacecraft.

Dr. Stephen P. Synnott of the Jet Propulsion Laboratory has found evidence for the existence of four, and possibly as many as six, new satellites of Saturn, using data from the Voyager 2 Saturn encounter.

Contact with NASA's Voyager 1 spacecraft was re established tonight following series of commands transmitted from Earth, ordering Voyager to re-orient itself in space with its antenna pointed to Earth.

Radio contact with the Voyager 1 spacecraft was lost late Thursday afternoon following maneuver to refine its flight path to Saturn, it was announced by the Jet Propulsion Laboratory. Hours later very weak signal was detected by the tracking station in Spain.

Project officials report light-sensing instrument aboard NASA's Voyager 1, that had difficulty during encounter with the planet Jupiter March 5th, has been confirmed as no longer being able to record useful data.

On the chance that someone is out there, NASA has approved tie placement of a phonograph record on each of two planetary spacecraft being readied far launch next month to the outer reaches of the solar system.