voyager final photo of earth

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This Day In History : February 14

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“Pale Blue Dot” photo of Earth is taken

On Valentine's Day, 1990, 3.7 billion miles away from the sun, the Voyager 1 spacecraft takes a photograph of Earth. The picture, known as Pale Blue Dot , depicts our planet as a nearly indiscernible speck roughly the size of a pixel.

Launched on September 5, 1977, Voyagers 1 and 2 were charged with exploring the outer reaches of our solar system. It passed by Jupiter in March of 1979 and Saturn the following year. The gaps between the outer planets are so vast that it was another decade before it passed by Neptune and arrived at the spot where it was to take a series of images of the planets, known as the "Family Portrait" of our solar system.

Of the Family Portrait series, Pale Blue Dot was certainly the most memorable. The furthest image ever taken of Earth, it lent its name to popular astronomer Carl Sagan's 1994 book. Sagan, who advised the Voyager mission and had suggested the photo, wrote the following: "Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there—on a mote of dust suspended in a sunbeam."

Voyager 1's journey continues. In 1998, it became the most distant human-made object in space, and on August 25, 2012, it left the furthest reaches of the sun's magnetic field and solar winds, becoming the first man-made object in interstellar space. 

Also on This Day in History February | 14

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Teen gunman kills 17, injures 17 at Parkland, Florida high school

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St. Valentine beheaded

Olympic speed skater dan jansen falls after sister dies, theodore roosevelt’s wife and mother die, first trainload of oranges leaves los angeles, lillian hellman sues mary mccarthy for libel, the st. valentine’s day massacre, ussr and prc sign mutual defense treaty, sandinistas agree to free elections, patriots defeat loyalists at kettle creek.

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Rae Paoletta • Mar 03, 2022

The best space pictures from the Voyager 1 and 2 missions

Launched in 1977, NASA’s Voyager 1 and 2 missions provided an unprecedented glimpse into the outer solar system — a liminal space once left largely to the imagination. The spacecraft provided views of worlds we’d never seen before, and in some cases, haven’t seen much of since.

The Voyager probes were launched about two weeks apart and had different trajectories, like two tour guides at the same museum. Only Voyager 2 visited the ice giants — Uranus and Neptune — for example.

The Voyagers hold a unique position in the pantheon of space history because they’re still making it; even right now, Voyagers 1 and 2 are the only functioning spacecraft in interstellar space. Both hold a Golden Record that contains sights and sounds of Earth in case alien life were to find one of the spacecraft.

As the Voyager missions voyage on, it’s good to look back at how they captured our solar system before leaving it.

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The most distant human-made object

No spacecraft has gone farther than NASA's Voyager 1. Launched in 1977 to fly by Jupiter and Saturn, Voyager 1 crossed into interstellar space in August 2012 and continues to collect data.

Mission Type

What is Voyager 1?

Voyager 1 has been exploring our solar system for more than 45 years. The probe is now in interstellar space, the region outside the heliopause, or the bubble of energetic particles and magnetic fields from the Sun.

• Voyager 1 was the first spacecraft to cross the heliosphere, the boundary where the influences outside our solar system are stronger than those from our Sun.
• Voyager 1 is the first human-made object to venture into interstellar space.
• Voyager 1 discovered a thin ring around Jupiter and two new Jovian moons: Thebe and Metis.
• At Saturn, Voyager 1 found five new moons and a new ring called the G-ring.

In Depth: Voyager 1

Voyager 1 was launched after Voyager 2, but because of a faster route, it exited the asteroid belt earlier than its twin, having overtaken Voyager 2 on Dec. 15, 1977.

Voyager 1 at Jupiter

Voyager 1 began its Jovian imaging mission in April 1978 at a range of 165 million miles (265 million km) from the planet. Images sent back by January the following year indicated that Jupiter’s atmosphere was more turbulent than during the Pioneer flybys in 1973–1974.

Beginning on January 30, Voyager 1 took a picture every 96 seconds for a span of 100 hours to generate a color timelapse movie to depict 10 rotations of Jupiter. On Feb. 10, 1979, the spacecraft crossed into the Jovian moon system and by early March, it had already discovered a thin (less than 30 kilometers thick) ring circling Jupiter.

Voyager 1’s closest encounter with Jupiter was at 12:05 UT on March 5, 1979 at a range of about 174,000 miles (280,000 km). It encountered several of Jupiter’s Moons, including Amalthea, Io, Europa, Ganymede, and Callisto, returning spectacular photos of their terrain, opening up completely new worlds for planetary scientists.

The most interesting find was on Io, where images showed a bizarre yellow, orange, and brown world with at least eight active volcanoes spewing material into space, making it one of the most (if not the most) geologically active planetary body in the solar system. The presence of active volcanoes suggested that the sulfur and oxygen in Jovian space may be a result of the volcanic plumes from Io which are rich in sulfur dioxide. The spacecraft also discovered two new moons, Thebe and Metis.

Voyager 1 at Saturn

Following the Jupiter encounter, Voyager 1 completed an initial course correction on April 9, 1979 in preparation for its meeting with Saturn. A second correction on Oct. 10, 1979 ensured that the spacecraft would not hit Saturn’s moon Titan.

Its flyby of the Saturn system in November 1979 was as spectacular as its previous encounter. Voyager 1 found five new moons, a ring system consisting of thousands of bands, wedge-shaped transient clouds of tiny particles in the B ring that scientists called “spokes,” a new ring (the “G-ring”), and “shepherding” satellites on either side of the F-ring—satellites that keep the rings well-defined.

During its flyby, the spacecraft photographed Saturn’s moons Titan, Mimas, Enceladus, Tethys, Dione, and Rhea. Based on incoming data, all the moons appeared to be composed largely of water ice. Perhaps the most interesting target was Titan, which Voyager 1 passed at 05:41 UT on November 12 at a range of 2,500 miles (4,000 km). Images showed a thick atmosphere that completely hid the surface. The spacecraft found that the moon’s atmosphere was composed of 90% nitrogen. Pressure ad temperature at the surface was 1.6 atmospheres and 356 °F (–180°C), respectively.

Atmospheric data suggested that Titan might be the first body in the solar system (apart from Earth) where liquid might exist on the surface. In addition, the presence of nitrogen, methane, and more complex hydrocarbons indicated that prebiotic chemical reactions might be possible on Titan.

Voyager 1’s closest approach to Saturn was at 23:46 UT on 12 Nov. 12, 1980 at a range of 78,000 miles(126,000 km).

Voyager 1’s ‘Family Portrait’ Image

Following the encounter with Saturn, Voyager 1 headed on a trajectory escaping the solar system at a speed of about 3.5 AU per year, 35° out of the ecliptic plane to the north, in the general direction of the Sun’s motion relative to nearby stars. Because of the specific requirements for the Titan flyby, the spacecraft was not directed to Uranus and Neptune.

The final images taken by the Voyagers comprised a mosaic of 64 images taken by Voyager 1 on Feb. 14, 1990 at a distance of 40 AU of the Sun and all the planets of the solar system (although Mercury and Mars did not appear, the former because it was too close to the Sun and the latter because Mars was on the same side of the Sun as Voyager 1 so only its dark side faced the cameras).

This was the so-called “pale blue dot” image made famous by Cornell University professor and Voyager science team member Carl Sagan (1934-1996). These were the last of a total of 67,000 images taken by the two spacecraft.

Voyager 1’s Interstellar Mission

All the planetary encounters finally over in 1989, the missions of Voyager 1 and 2 were declared part of the Voyager Interstellar Mission (VIM), which officially began on Jan. 1, 1990.

The goal was to extend NASA’s exploration of the solar system beyond the neighborhood of the outer planets to the outer limits of the Sun’s sphere of influence, and “possibly beyond.” Specific goals include collecting data on the transition between the heliosphere, the region of space dominated by the Sun’s magnetic field and solar field, and the interstellar medium.

On Feb. 17, 1998, Voyager 1 became the most distant human-made object in existence when, at a distance of 69.4 AU from the Sun when it “overtook” Pioneer 10.

On Dec. 16, 2004, Voyager scientists announced that Voyager 1 had reported high values for the intensity for the magnetic field at a distance of 94 AU, indicating that it had reached the termination shock and had now entered the heliosheath.

The spacecraft finally exited the heliosphere and began measuring the interstellar environment on Aug. 25, 2012, the first spacecraft to do so.

On Sept. 5, 2017, NASA marked the 40th anniversary of its launch, as it continues to communicate with NASA’s Deep Space Network and send data back from four still-functioning instruments—the cosmic ray telescope, the low-energy charged particles experiment, the magnetometer, and the plasma waves experiment.

The Golden Record

Each of the Voyagers contain a “message,” prepared by a team headed by Carl Sagan, in the form of a 12-inch (30 cm) diameter gold-plated copper disc for potential extraterrestrials who might find the spacecraft. Like the plaques on Pioneers 10 and 11, the record has inscribed symbols to show the location of Earth relative to several pulsars.

The records also contain instructions to play them using a cartridge and a needle, much like a vinyl record player. The audio on the disc includes greetings in 55 languages, 35 sounds from life on Earth (such as whale songs, laughter, etc.), 90 minutes of generally Western music including everything from Mozart and Bach to Chuck Berry and Blind Willie Johnson. It also includes 115 images of life on Earth and recorded greetings from then U.S. President Jimmy Carter (1924– ) and then-UN Secretary-General Kurt Waldheim (1918–2007).

By January 2024, Voyager 1 was about 136 AU (15 billion miles, or 20 billion kilometers) from Earth, the farthest object created by humans, and moving at a velocity of about 38,000 mph (17.0 kilometers/second) relative to the Sun.

National Space Science Data Center: Voyager 1

A library of technical details and historic perspective.

Beyond Earth: A Chronicle of Deep Space Exploration

A comprehensive history of missions sent to explore beyond Earth.

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Our Solar System

NASA's Voyager probes have been traveling through space for nearly 46 years. Here are 18 groundbreaking photos from their incredible mission.

• Nearly 46 years after their launch, Voyager 1 and 2 will likely soon reach the end of their scientific mission . 
• NASA recently lost contact with Voyager 2 after sending it a bad command by mistake. 
• Here are 18 pictures the probes took over the course of their forty-plus-year journey. 

The Voyager probes are pioneers of science, making it farther into space than any other manufactured object. But now, they face a terminal problem: their power is running out.

The twin probes were originally sent on a four-year mission to tour the solar system, but they exceeded all expectations and are still going nearly 46 years later. That makes them NASA's longest-lived mission.

Scientists are now doing their best to  keep the probes going for as long as possible. They recently found a clever hack to extend Voyager 2's life for another three years and plan to do the same with Voyager 1.

But these are old machines and NASA is constantly scrambling to fix mistakes. Last year, Voyager 1 started sending garbled data from the outside of the solar system. NASA ultimately figured out one of its computers had gone dead.

Voyager 2 is now in limbo , as the agency revealed Friday it had lost contact with the probe when someone sent a wrong command. It could be the end of Voyager 2's mission if NASA can't fix the mistake, which the agency probably won't be able to do before October.

As the probes are nearing the end of their scientific mission, here are 18 images from Voyager that changed science.

The Voyager probes were designed to visit Jupiter and Saturn.

The Voyager mission included two probes — Voyager 1 and Voyager 2 — which NASA launched in 1977 within a few months of each other.

NASA took advantage of a rare planet alignment to turbocharge their journeys into space.

NASA originally built the probes to last five years, but they have exceeded that lifespan many times .

As of August 20 and September 5, 2023, Voyager 2 and Voyager 1 will have been traveling for 46 years, respectively. 

This is what Voyager 1 saw on its approach to Jupiter.

Voyager 1 and Voyager 2 reached Jupiter in 1979.

As they flew by the planet, they took about 50,000 pictures of Jupiter. These blew away scientists, as the quality of the pictures was much better than those taken from Earth, according to NASA.

These snaps  taught scientists important facts about the planet's atmosphere, magnetic forces, and geology that would have been difficult to decipher otherwise.

The probes discovered two new moons orbiting Jupiter: Thebe and Metis.

They also spotted a thin ring around Jupiter.

The probe captured this picture as it was looking back at the planet backlit by the Sun. 

Voyager 1 discovered volcanoes at the surface of Io, one of Jupiter's moons.

Next stop: Saturn.

In 1980 and 1981, the probes reached Saturn . The flyby gave scientists unprecedented insight into the planet's ring structure, atmosphere, and moons.

Voyager snapped Saturn's rings in more detail than ever before.

And showed every secret that Enceladus, Saturn's moon, had to offer.

Saturn, snapped as the probe flew away, was shown in a new light.

By 1986, Voyager 2 had made it to Uranus.

By 1986, Voyager 1 has finished its grand tour of the solar system, and few out towards space. But Voyager 2 kept on its exploring our nearest planets, passing 50,600 miles away from Uranus in January 1986. 

Voyager 2 discovered two extra rings around Uranus , revealing the planet had at least 11, not 9. 

Voyager 2 also spotted 11 previously unseen moons around Uranus.

Here is a picture of Miranda, Uranus's sixth-biggest moon.

Voyager 2 was the first spacecraft to observe Neptune from a close distance.

In 1989, 12 years after its launch, Voyager 2 passed within 3,000 miles of Neptune. 

Here's Nepture taken by Voyager 2, in all its blue glory.

Voyager 2 took this unflattering pic of Triton's rough face.

It captured Triton, Neptune's moon in unprecedented detail. 

And snapped Triton's southern hemisphere.

As it flew by, Voyager 2 uncovered Neptune's rings.

As its parting gift, Voyager 2 took this beautiful picture of light grazing Neptune's south pole.

This is Voyager 2's last picture. Since it wouldn't come across another planet on its ongoing journey, NASA switched off its cameras after its flyby of Neptune to conserve energy for other instruments. 

Voyager 1 had one last trick up its sleeve.

As its last photographic hurrah in 1990, Voyager 1 took 60 images of the solar system from 4 billion miles away.

It gave us the Earth's longest selfie, dubbed the "pale blue dot."

This remains the longest-range selfie: a portrait of the Earth taken by a human-made probe from 4 billion miles away. 

After this picture, NASA switched off Voyager 1's cameras to save energy. NASA could switch the probes' cameras back on , but it is not a priority for the mission. 

Beyond the solar system

Though the probes are no longer sending pictures, they haven't stopped sending crucial information about space. 

In 2012, Voyager 1 became the first human-made instrument to cross into interstellar space by crossing the boundary between our solar system and the rest of the universe, called the heliopause. 

Voyager 2 was second, crossing that threshold in 2018 . The probe revealed that there was yet another  layer outside of our heliosphere.

The probes keep sending back measurements from interstellar space, like weird hums likely coming from vibrations made by neighboring stars.

Even after their instruments are switched off, the probes' mission continues.

NASA is planning to switch more of the probes' instruments in the hope of extending their life to the 2030s.

But even after all their instruments become quiet, their mission will carry on. As they drift off, they will still be carrying a golden record that carries crucial information about humanity. If intelligent extraterrestrial life exists, they could use that information to reach out to us.

This article was originally published on June 6, 2022, and is being updated with the latest developments about Voyager 1 and 2. 

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NASA’s Voyager 1 Resumes Sending Engineering Updates to Earth

NASA’s Voyager 1 spacecraft is depicted in this artist’s concept traveling through interstellar space, or the space between stars, which it entered in 2012.

After some inventive sleuthing, the mission team can — for the first time in five months — check the health and status of the most distant human-made object in existence.

For the first time since November , NASA’s Voyager 1 spacecraft is returning usable data about the health and status of its onboard engineering systems. The next step is to enable the spacecraft to begin returning science data again. The probe and its twin, Voyager 2, are the only spacecraft to ever fly in interstellar space (the space between stars).

Voyager 1 stopped sending readable science and engineering data back to Earth on Nov. 14, 2023, even though mission controllers could tell the spacecraft was still receiving their commands and otherwise operating normally. In March, the Voyager engineering team at NASA’s Jet Propulsion Laboratory in Southern California confirmed that the issue was tied to one of the spacecraft’s three onboard computers, called the flight data subsystem (FDS). The FDS is responsible for packaging the science and engineering data before it’s sent to Earth.

After receiving data about the health and status of Voyager 1 for the first time in five months, members of the Voyager flight team celebrate in a conference room at NASA’s Jet Propulsion Laboratory on April 20.

The team discovered that a single chip responsible for storing a portion of the FDS memory — including some of the FDS computer’s software code — isn’t working. The loss of that code rendered the science and engineering data unusable. Unable to repair the chip, the team decided to place the affected code elsewhere in the FDS memory. But no single location is large enough to hold the section of code in its entirety.

So they devised a plan to divide the affected code into sections and store those sections in different places in the FDS. To make this plan work, they also needed to adjust those code sections to ensure, for example, that they all still function as a whole. Any references to the location of that code in other parts of the FDS memory needed to be updated as well.

The team started by singling out the code responsible for packaging the spacecraft’s engineering data. They sent it to its new location in the FDS memory on April 18. A radio signal takes about 22 ½ hours to reach Voyager 1, which is over 15 billion miles (24 billion kilometers) from Earth, and another 22 ½ hours for a signal to come back to Earth. When the mission flight team heard back from the spacecraft on April 20, they saw that the modification worked: For the first time in five months, they have been able to check the health and status of the spacecraft.

Get the Latest News from the Final Frontier

During the coming weeks, the team will relocate and adjust the other affected portions of the FDS software. These include the portions that will start returning science data.

Voyager 2 continues to operate normally. Launched over 46 years ago , the twin Voyager spacecraft are the longest-running and most distant spacecraft in history. Before the start of their interstellar exploration, both probes flew by Saturn and Jupiter, and Voyager 2 flew by Uranus and Neptune.

Caltech in Pasadena, California, manages JPL for NASA.

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Calla Cofield

Jet Propulsion Laboratory, Pasadena, Calif.

626-808-2469

[email protected]

Voyager 1 had a problem. Here's how NASA fixed it from 15 billion miles away.

Working from more than 15 billion miles away, NASA engineers have solved a computer problem aboard Voyager 1 , allowing the probe to send readable data five months after a chip error made its transmissions impossible to decipher.

Voyager 1, along with its sister craft, Voyager 2, are  robotic probes  that were launched in 1977. Voyager 1 reached interstellar space in 2012. It's now 15.1 billion miles away, the farthest from Earth a human-made object has ever traveled.

Learn more: Closer look at Voyager 1 and Voyager 2 .

Voyager 2 entered interstellar space − the space between the stars, starting at abou t 11 billion miles from our sun − in 2018. It's now 12.7 billion miles away.

Voyager 1's computer glitch garbled the science and engineering data the craft sends to Earth, which rendered it unreadable. That started on Nov. 14, 2023.

How did engineers fix Voyager's problem?

Engineers from NASA and the Jet Propulsion Laboratory discovered a single computer chip inside the spacecraft’s Flight Data Subsystem – which collects science and engineering information and transmits it to Earth – had malfunctioned.

Can't see our graphics? Click here .

The chip stored part of the Flight Data Subsystem's memory and software code. Engineers could still receive data from Voyager 1, but it was scrambled.

The chip could not be repaired. Instead, engineers moved software code from the chip into a different part of the subsystem's memory system.

The code was too large to to be stored in a single location in the spacecraft. Engineers divided the code into sections and stored them in different places within the subsystem. The code sections were adjusted to make sure they worked as a whole.

Engineers tested the fix by moving a code that transmits data about the spacecraft. They were rewarded with a transmission from Voyager that contained readable data about the craft's status.

All that took time. Voyager is moving about 38,000 mph. Because it's so far away, it takes 22.5 hours for a radio signal to reach Voyager. It takes another 22.5 hours for the spacecraft’s reply to reach antenna networks on Earth.

What happens next?

Engineers will reposition and synchronize the other parts of the code. That should allow Voyager 1 to start sending readable data on what it finds as it moves farther away from Earth.

SOURCE USA TODAY Network reporting and research; NASA/Jet Propulsion Laboratory/California Institute of Technology; Reuters

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Voyager 1 takes the first image of the earth-moon system in a single frame.

Voyager 1 snapped this picture from a distance of 7.25 million miles. It was the first to include both the Earth and the Moon in a single frame taken by a spacecraft.

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Good news from Voyager 1, which is now out past the edge of the solar system

Nell Greenfieldboyce

In mid-November, Voyager 1 suffered a glitch, and it's messages stopped making sense. But the NASA probe is once again sending messages to Earth that make sense.

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NASA's Voyager 1 spacecraft finally phones home after 5 months of no contact

On Saturday, April 5, Voyager 1 finally "phoned home" and updated its NASA operating team about its health.

NASA's interstellar explorer Voyager 1 is finally communicating with ground control in an understandable way again. On Saturday (April 20), Voyager 1 updated ground control about its health status for the first time in 5 months. While the Voyager 1 spacecraft still isn't sending valid science data back to Earth, it is now returning usable information about the health and operating status of its onboard engineering systems. 

Thirty-five years after its launch in 1977, Voyager 1 became the first human-made object to leave the solar system and enter interstellar space . It was followed out of our cosmic quarters by its space-faring sibling, Voyager 2 , six years later in 2018. Voyager 2, thankfully, is still operational and communicating well with Earth. 

The two spacecraft remain the only human-made objects exploring space beyond the influence of the sun. However, on Nov. 14, 2023, after 11 years of exploring interstellar space and while sitting a staggering 15 billion miles (24 billion kilometers) from Earth, Voyager 1's binary code — computer language composed of 0s and 1s that it uses to communicate with its flight team at NASA — stopped making sense.

Related: We finally know why NASA's Voyager 1 spacecraft stopped communicating — scientists are working on a fix

In March, NASA's Voyager 1 operating team sent a digital "poke" to the spacecraft, prompting its flight data subsystem (FDS) to send a full memory readout back home.

This memory dump revealed to scientists and engineers that the "glitch" is the result of a corrupted code contained on a single chip representing around 3% of the FDS memory. The loss of this code rendered Voyager 1's science and engineering data unusable.

The NASA team can't physically repair or replace this chip, of course, but what they can do is remotely place the affected code elsewhere in the FDS memory. Though no single section of the memory is large enough to hold this code entirely, the team can slice it into sections and store these chunks separately. To do this, they will also have to adjust the relevant storage sections to ensure the addition of this corrupted code won't cause those areas to stop operating individually, or working together as a whole. In addition to this, NASA staff will also have to ensure any references to the corrupted code's location are updated.

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On April 18, 2024, the team began sending the code to its new location in the FDS memory. This was a painstaking process, as a radio signal takes 22.5 hours to traverse the distance between Earth and Voyager 1, and it then takes another 22.5 hours to get a signal back from the craft. 

By Saturday (April 20), however, the team confirmed their modification had worked. For the first time in five months, the scientists were able to communicate with Voyager 1 and check its health. Over the next few weeks, the team will work on adjusting the rest of the FDS software and aim to recover the regions of the system that are responsible for packaging and returning vital science data from beyond the limits of the solar system.

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Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.’s Open University. Follow him on Twitter @sciencef1rst.

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• Robb62 'V'ger must contact the creator. Reply
• Holy HannaH! Couldn't help but think that "repair" sounded extremely similar to the mechanics of DNA and the evolution of life. Reply
• Torbjorn Larsson *Applause* indeed, thanks to the Voyager teams for the hard work! Reply
• SpaceSpinner I notice that the article says that it has been in space for 35 years. Either I have gone back in time 10 years, or their AI is off by 10 years. V-*ger has been captured! Reply

Admin said: On Saturday, April 5, Voyager 1 finally "phoned home" and updated its NASA operating team about its health. The interstellar explorer is back in touch after five months of sending back nonsense data. NASA's Voyager 1 spacecraft finally phones home after 5 months of no contact : Read more

evw said: I'm incredibly grateful for the persistence and dedication of the Voyagers' teams and for the amazing accomplishments that have kept these two spacecrafts operational so many years beyond their expected lifetimes. V-1 was launched when I was 25 years young; I was nearly delirious with joy. Exploring the physical universe captivated my attention while I was in elementary school and has kept me mesmerized since. I'm very emotional writing this note, thinking about what amounts to a miracle of technology and longevity in my eyes. BRAVO!!! THANK YOU EVERYONE PAST & PRESENT!!!

• EBairead I presume it's Fortran. Well done all. Reply

SpaceSpinner said: I notice that the article says that it has been in space for 35 years. Either I have gone back in time 10 years, or their AI is off by 10 years. V-*ger has been captured!

EBairead said: I presume it's Fortran. Well done all.

• View All 13 Comments

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Voyager 1 transmitting data again after Nasa remotely fixes 46-year-old probe

Engineers spent months working to repair link with Earth’s most distant spacecraft, says space agency

Earth’s most distant spacecraft, Voyager 1, has started communicating properly again with Nasa after engineers worked for months to remotely fix the 46-year-old probe.

Nasa’s Jet Propulsion Laboratory (JPL), which makes and operates the agency’s robotic spacecraft, said in December that the probe – more than 15bn miles (24bn kilometres) away – was sending gibberish code back to Earth.

In an update released on Monday , JPL announced the mission team had managed “after some inventive sleuthing” to receive usable data about the health and status of Voyager 1’s engineering systems. “The next step is to enable the spacecraft to begin returning science data again,” JPL said. Despite the fault, Voyager 1 had operated normally throughout, it added.

Launched in 1977, Voyager 1 was designed with the primary goal of conducting close-up studies of Jupiter and Saturn in a five-year mission. However, its journey continued and the spacecraft is now approaching a half-century in operation.

Voyager 1 crossed into interstellar space in August 2012, making it the first human-made object to venture out of the solar system. It is currently travelling at 37,800mph (60,821km/h).

Hi, it's me. - V1 https://t.co/jgGFBfxIOe — NASA Voyager (@NASAVoyager) April 22, 2024

The recent problem was related to one of the spacecraft’s three onboard computers, which are responsible for packaging the science and engineering data before it is sent to Earth. Unable to repair a broken chip, the JPL team decided to move the corrupted code elsewhere, a tricky job considering the old technology.

The computers on Voyager 1 and its sister probe, Voyager 2, have less than 70 kilobytes of memory in total – the equivalent of a low-resolution computer image. They use old-fashioned digital tape to record data.

The fix was transmitted from Earth on 18 April but it took two days to assess if it had been successful as a radio signal takes about 22 and a half hours to reach Voyager 1 and another 22 and a half hours for a response to come back to Earth. “When the mission flight team heard back from the spacecraft on 20 April, they saw that the modification worked,” JPL said.

Alongside its announcement, JPL posted a photo of members of the Voyager flight team cheering and clapping in a conference room after receiving usable data again, with laptops, notebooks and doughnuts on the table in front of them.

The Retired Canadian astronaut Chris Hadfield, who flew two space shuttle missions and acted as commander of the International Space Station, compared the JPL mission to long-distance maintenance on a vintage car.

“Imagine a computer chip fails in your 1977 vehicle. Now imagine it’s in interstellar space, 15bn miles away,” Hadfield wrote on X . “Nasa’s Voyager probe just got fixed by this team of brilliant software mechanics.

Voyager 1 and 2 have made numerous scientific discoveries , including taking detailed recordings of Saturn and revealing that Jupiter also has rings, as well as active volcanism on one of its moons, Io. The probes later discovered 23 new moons around the outer planets.

As their trajectory takes them so far from the sun, the Voyager probes are unable to use solar panels, instead converting the heat produced from the natural radioactive decay of plutonium into electricity to power the spacecraft’s systems.

Nasa hopes to continue to collect data from the two Voyager spacecraft for several more years but engineers expect the probes will be too far out of range to communicate in about a decade, depending on how much power they can generate. Voyager 2 is slightly behind its twin and is moving slightly slower.

In roughly 40,000 years, the probes will pass relatively close, in astronomical terms, to two stars. Voyager 1 will come within 1.7 light years of a star in the constellation Ursa Minor, while Voyager 2 will come within a similar distance of a star called Ross 248 in the constellation of Andromeda.

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After months of silence, Voyager 1 has returned NASA’s calls

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For the last five months, it seemed very possible that a 46-year-old conversation had finally reached its end.

Since its launch from Kennedy Space Center on Sept. 5, 1977, NASA’s Voyager 1 spacecraft has diligently sent regular updates to Earth on the health of its systems and data collected from its onboard instruments.

But in November, the craft went quiet.

Voyager 1 is now some 15 billion miles away from Earth. Somewhere in the cold interstellar space between our sun and the closest stars, its flight data system stopped communicating with the part of the probe that allows it to send signals back to Earth. Engineers at the Jet Propulsion Laboratory in La Cañada Flintridge could tell that Voyager 1 was getting its messages, but nothing was coming back.

“We’re to the point where the hardware is starting to age,” said Linda Spilker, the project scientist for the Voyager mission. “It’s like working on an antique car, from 15 billion miles away.”

Week after week, engineers sent troubleshooting commands to the spacecraft, each time patiently waiting the 45 hours it takes to get a response here on Earth — 22.5 hours traveling at the speed of light to reach the probe, and 22.5 hours back.

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By March, the team had figured out that a memory chip that stored some of the flight data system’s software code had failed, turning the craft’s outgoing communications into gibberish.

A long-distance repair wasn’t possible. There wasn’t enough space anywhere in the system to shift the code in its entirety. So after manually reviewing the code line by line, engineers broke it up and tucked the pieces into the available slots of memory.

They sent a command to Voyager on Thursday. In the early morning hours Saturday, the team gathered around a conference table at JPL: laptops open, coffee and boxes of doughnuts in reach.

At 6:41 a.m., data from the craft showed up on their screens. The fix had worked .

“We went from very quiet and just waiting patiently to cheers and high-fives and big smiles and sighs of relief,” Spilker said. “I’m very happy to once again have a meaningful conversation with Voyager 1.”

Voyager 1 is one of two identical space probes. Voyager 2, launched two weeks before Voyager 1, is now about 13 billion miles from Earth, the two crafts’ trajectories having diverged somewhere around Saturn. (Voyager 2 continued its weekly communications uninterrupted during Voyager 1’s outage.)

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They are the farthest-flung human-made objects in the universe, having traveled farther from their home planet than anything else this species has built. The task of keeping communications going grows harder with each passing day. Every 24 hours, Voyager 1 travels 912,000 miles farther away from us. As that distance grows, the signal becomes slower and weaker.

When the probe visited Jupiter in 1979, it was sending back data at a rate of 115.2 kilobits per second, Spilker said. Today, 45 years and more than 14 billion miles later, data come back at a rate of 40 bits per second.

The team is cautiously optimistic that the probes will stay in contact for three more years, long enough to celebrate the mission’s 50th anniversary in 2027, Spilker said. They could conceivably last until the 2030s.

The conversation can’t last forever. Microscopic bits of silica keep clogging up the thrusters that keep the probes’ antennas pointed toward Earth, which could end communications. The power is running low. Eventually, the day will come when both Voyagers stop transmitting data to Earth, and the first part of their mission ends.

But on the day each craft goes quiet, they begin a new era, one that could potentially last far longer. Each probe is equipped with a metallic album cover containing a Golden Record , a gold-plated copper disk inscribed with sounds and images meant to describe the species that built the Voyagers and the planet they came from.

Erosion in space is negligible; the images could be readable for another billion years or more. Should any other intelligent life form encounter one of the Voyager probes and have a means of retrieving the data from the record, they will at the very least have a chance to figure out who sent them — even if our species is by that time long gone.

JPL tries to keep Voyager space probes from disconnecting the world’s longest phone call

Keeping in touch with NASA’s two aging Voyager spacecraft is getting harder to do as they get farther away and their power sources dwindle.

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Corinne Purtill is a science and medicine reporter for the Los Angeles Times. Her writing on science and human behavior has appeared in the New Yorker, the New York Times, Time Magazine, the BBC, Quartz and elsewhere. Before joining The Times, she worked as the senior London correspondent for GlobalPost (now PRI) and as a reporter and assignment editor at the Cambodia Daily in Phnom Penh. She is a native of Southern California and a graduate of Stanford University.

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NASA hears from Voyager 1, the most distant spacecraft from Earth, after months of quiet

by Marcia Dunn

NASA has finally heard back from Voyager 1 again in a way that makes sense.

The most distant spacecraft from Earth stopped sending back understandable data last November. Flight controllers traced the blank communication to a bad computer chip and rearranged the spacecraft's coding to work around the trouble.

NASA's Jet Propulsion Laboratory in Southern California declared success after receiving good engineering updates late last week. The team is still working to restore transmission of the science data.

It takes 22 1/2 hours to send a signal to Voyager 1, more than 15 billion miles (24 billion kilometers) away in interstellar space . The signal travel time is double that for a round trip.

Contact was never lost, rather it was like making a phone call where you can't hear the person on the other end, a JPL spokeswoman said Tuesday.

Launched in 1977 to study Jupiter and Saturn, Voyager 1 has been exploring interstellar space — the space between star systems — since 2012. Its twin, Voyager 2, is 12.6 billion miles (20 billion kilometers) away and still working fine.

© 2024 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed without permission.

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• The Contents
• The Making of
• Where Are They Now
• Frequently Asked Questions
• Q & A with Ed Stone

golden record

Where are they now.

• frequently asked questions
• Q&A with Ed Stone

Mission Status

Instrument status.

Where are the Voyagers now?

To learn more about Voyager, zoom in and give the spacecraft a spin. View the full interactive experience at Eyes on the Solar System . Credit: NASA/JPL-Caltech

View Voyager

Space Flight Operations Schedule (SFOS)

SFOS files showing Voyager activity on Deep Space Network (DSN)

2024 Tracking Schedule

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Watch CBS News

Most distant spacecraft from Earth sends data to NASA for first time in 5 months

By Kerry Breen

Updated on: April 23, 2024 / 8:45 PM EDT / CBS News

The most distant spacecraft from Earth has resumed sending data after a five-month gap, NASA said Monday. 

NASA's Voyager 1 spacecraft was launched in 1977, about two weeks after the launch of its twin, Voyager 2. The spacecraft has spent over 45 years studying the outer solar system and has made flybys of Jupiter and Saturn and traveled more than 46,000,000,000 miles . 

In November 2023, the spacecraft stopped sending "readable science and engineering data," NASA said in a news release . Mission controllers were able to determine that Voyager 1 was still receiving commands from Earth and operating normally, but the science data could not be read and researchers did not know the status of the craft's onboard engineering systems. 

Last month, the craft's engineering team was able to confirm that the issue was related to one of the three onboard computers that make up Voyager 1's flight data subsystem. That system is what packages science and engineering data into a readable format before sending it to Earth. The team determined that "a single chip responsible for storing a portion of the (system's) memory," including some computer software code, wasn't working. 

The chip couldn't be repaired and the code was too large to place in one new location, NASA said, so the team worked to relocate the affected code into multiple sections of the flight data subsystem. It took weeks to repackage the code, NASA said, and last Thursday, the new location was communicated to Voyager 1. 

It takes about 22 and a half hours for a radio signal to reach Voyager 1 in interstellar space , or the space between stars, NASA said. On Saturday, the spacecraft's mission team received a response, confirming that the code modification had worked. 

Engineers celebrated receiving new data for the first time in almost half a year, but the work isn't done yet. NASA said that in the coming weeks, the mission team will "relocate and adjust the other affected portions" of the software, including portions that will start returning science data. Meanwhile, Voyager 2 continues to operate with no issues, and both craft will continue to report back on the distant reaches of the solar system. 

Kerry Breen is a reporter and news editor at CBSNews.com. A graduate of New York University's Arthur L. Carter School of Journalism, she previously worked at NBC News' TODAY Digital. She covers current events, breaking news and issues including substance use.

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