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Voyager 2 illuminates boundary of interstellar space.
Anthony Greicius
Pushing through plasma, leaking particles, magnetic field mystery.
One year ago, on Nov. 5, 2018, NASA’s Voyager 2 became only the second spacecraft in history to leave the heliosphere — the protective bubble of particles and magnetic fields created by our Sun. At a distance of about 11 billion miles (18 billion kilometers) from Earth — well beyond the orbit of Pluto — Voyager 2 had entered interstellar space, or the region between stars. Today, five new research papers in the journal Nature Astronomy describe what scientists observed during and since Voyager 2’s historic crossing.
Each paper details the findings from one of Voyager 2’s five operating science instruments: a magnetic field sensor, two instruments to detect energetic particles in different energy ranges and two instruments for studying plasma (a gas composed of charged particles). Taken together, the findings help paint a picture of this cosmic shoreline, where the environment created by our Sun ends and the vast ocean of interstellar space begins.
The Sun’s heliosphere is like a ship sailing through interstellar space. Both the heliosphere and interstellar space are filled with plasma, a gas that has had some of its atoms stripped of their electrons. The plasma inside the heliosphere is hot and sparse, while the plasma in interstellar space is colder and denser. The space between stars also contains cosmic rays, or particles accelerated by exploding stars. Voyager 1 discovered that the heliosphere protects Earth and the other planets from more than 70% of that radiation.
When Voyager 2 exited the heliosphere last year , scientists announced that its two energetic particle detectors noticed dramatic changes: The rate of heliospheric particles detected by the instruments plummeted, while the rate of cosmic rays (which typically have higher energies than the heliospheric particles) increased dramatically and remained high. The changes confirmed that the probe had entered a new region of space.
Before Voyager 1 reached the edge of the heliosphere in 2012, scientists didn’t know exactly how far this boundary was from the Sun. The two probes exited the heliosphere at different locations and also at different times in the constantly repeating, approximately 11-year solar cycle, over the course of which the Sun goes through a period of high and low activity. Scientists expected that the edge of the heliosphere, called the heliopause, can move as the Sun’s activity changes, sort of like a lung expanding and contracting with breath. This was consistent with the fact that the two probes encountered the heliopause at different distances from the Sun.
The new papers now confirm that Voyager 2 is not yet in undisturbed interstellar space: Like its twin, Voyager 1, Voyager 2 appears to be in a perturbed transitional region just beyond the heliosphere.
“The Voyager probes are showing us how our Sun interacts with the stuff that fills most of the space between stars in the Milky Way galaxy,” said Ed Stone, project scientist for Voyager and a professor of physics at Caltech. “Without this new data from Voyager 2, we wouldn’t know if what we were seeing with Voyager 1 was characteristic of the entire heliosphere or specific just to the location and time when it crossed.”
The two Voyager spacecraft have now confirmed that the plasma in local interstellar space is significantly denser than the plasma inside the heliosphere, as scientists expected. Voyager 2 has now also measured the temperature of the plasma in nearby interstellar space and confirmed it is colder than the plasma inside the heliosphere.
In 2012, Voyager 1 observed a slightly higher-than-expected plasma density just outside the heliosphere, indicating that the plasma is being somewhat compressed. Voyager 2 observed that the plasma outside the heliosphere is slightly warmer than expected, which could also indicate it is being compressed. (The plasma outside is still colder than the plasma inside.) Voyager 2 also observed a slight increase in plasma density just before it exited the heliosphere, indicating that the plasma is compressed around the inside edge of the bubble. But scientists don’t yet fully understand what is causing the compression on either side.
If the heliosphere is like a ship sailing through interstellar space, it appears the hull is somewhat leaky. One of Voyager’s particle instruments showed that a trickle of particles from inside the heliosphere is slipping through the boundary and into interstellar space. Voyager 1 exited close to the very “front” of the heliosphere, relative to the bubble’s movement through space. Voyager 2, on the other hand, is located closer to the flank, and this region appears to be more porous than the region where Voyager 1 is located.
An observation by Voyager 2’s magnetic field instrument confirms a surprising result from Voyager 1: The magnetic field in the region just beyond the heliopause is parallel to the magnetic field inside the heliosphere. With Voyager 1, scientists had only one sample of these magnetic fields and couldn’t say for sure whether the apparent alignment was characteristic of the entire exterior region or just a coincidence. Voyager 2’s magnetometer observations confirm the Voyager 1 finding and indicate that the two fields align, according to Stone.
The Voyager probes launched in 1977, and both flew by Jupiter and Saturn. Voyager 2 changed course at Saturn in order to fly by Uranus and Neptune, performing the only close flybys of those planets in history. The Voyager probes completed their Grand Tour of the planets and began their Interstellar Mission to reach the heliopause in 1989. Voyager 1, the faster of the two probes, is currently over 13.6 billion miles (22 billion kilometers) from the Sun, while Voyager 2 is 11.3 billion miles (18.2 billion kilometers) from the Sun. It takes light about 16.5 hours to travel from Voyager 2 to Earth. By comparison, light traveling from the Sun takes about eight minutes to reach Earth.
More information about Voyager is available at the following site:
https://voyager.jpl.nasa.gov/
Calla Cofield Jet Propulsion Laboratory, Pasadena, Calif. 626-808-2469 [email protected]
Voyager 2 Enters Final Planetary Encounter
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.
Voyager mission controllers at the Jet Propulsion Laboratory in Pasadena, Calif., will now be tracking the spacecraft around the clock as Voyager begins taking systematic images of Neptune and sending back about 50 pictures day.
"Now that we've entered the observatory phase we'll be taking about six images every three hours to study changes in the atmosphere from rotation to rotation," said Dr. Ellis Miner, Voyager deputy project scientist.
Signals from Voyager 2 marking the beginning of the observatory phase were received at 3:40 a.m. Pacific Daylight Time. This official start of the Neptune encounter places Voyager at the top of the priority list of spacecraft being tracked by the NASA/JPL Deep Space Network. Before today, Voyager had to compete with other projects for DSN coverage. During the observatory phase, the spacecraft will be monitored at regular intervals by more than one antenna at each of the DSN sites in California, Spain and Australia.
In addition to taking images of the planet, Voyager 2 will also be making systematic ultraviolet observations of Neptune looking for any auroral activity and escaping gases. Calibrations of the spacecraft's instruments will also be done in preparation for critical near-encounter observations.
In observations of Neptune made by Voyager 2 in late 1988 and January of 1989, scientists saw bright spot in the southern hemisphere of the planet. Since January, that spot has dimmed and larger dark area has been seen in the images. Recently, the bright spot has begun to brighten again and other spots are becoming apparent. Neptune's atmosphere has also revealed regions of dark banding near its southern pole and similar banding has been seen north of the planet's equator.
Voyager's observatory phase ends and its far encounter phase starts on Aug. 6, 1989.
The near-encounter phase of the mission includes Voyager's closest approach to Neptune at 9 p.m. Pacific Daylight Time on Aug. 24, 1989, when the spacecraft passes just 4,850 kilometers (3,000 miles) from the planet's cloud tops. Five hours later, the spacecraft will fly about 39,000 kilometers (24,000 miles) from the planet's major moon Triton.
Voyager 2 is now 117 million kilometers (73 million miles) from Neptune. The Neptune flyby will be Voyager 2's fourth and final planetary encounter before the spacecraft heads out of the solar system to explore interstellar space.
Launched in 1977, Voyager 2 and its twin Voyager 1 have encountered Jupiter and Saturn. Voyager 2 went on to fly by Uranus in January 1986 while Voyager 1 continues its trek out of the solar system.
Now 4.271 billion kilometers (2.654 billion miles) from Earth, Voyager 2 is so far away that data radioed at the speed of light (186,000 miles per second) take nearly four hours to reach Earth. Voyager's images are being recorded on the spacecraft's tape recorders and will be played back to Earth beginning Tuesday morning.
The Voyager project is managed by the Jet Propulsion Laboratory for NASA's Office of Space Science and Applications.
Voyager 2 Enters Final Planetary Encounter
NASA's Voyager 2 spacecraft today entered the observatoryphase of its flyby of Neptune, signaling the beginning of its final planetary encounter after nearly 12 years of exploring the outer solar system.
Voyager mission controllers at the Jet Propulsion Laboratory in Pasadena, Calif., will now be tracking the spacecraft around the clock as Voyager begins taking systematic images of Neptune and sending back about 50 pictures day.
"Now that we've entered the observatory phase we'll be taking about six images every three hours to study changes in the atmosphere from rotation to rotation," said Dr. Ellis Miner, Voyager deputy project scientist.
Signals from Voyager 2 marking the beginning of the observatory phase were received at 3:40 a.m. Pacific Daylight Time. This official start of the Neptune encounter places Voyager at the top of the priority list of spacecraft being tracked by the NASA/JPL Deep Space Network. Before today, Voyager had to compete with other projects for DSN coverage. During the observatory phase, the spacecraft will be monitored at regular intervals by more than one antenna at each of the DSN sites in California, Spain and Australia.
In addition to taking images of the planet, Voyager 2 will also be making systematic ultraviolet observations of Neptune looking for any auroral activity and escaping gases. Calibrations of the spacecraft's instruments will also be done in preparation for critical near-encounter observations.
In observations of Neptune made by Voyager 2 in late 1988 and January of 1989, scientists saw bright spot in the southern hemisphere of the planet. Since January, that spot has dimmed and larger dark area has been seen in the images. Recently, the bright spot has begun to brighten again and other spots are becoming apparent. Neptune's atmosphere has also revealed regions of dark banding near its southern pole and similar banding has been seen north of the planet's equator.
Voyager's observatory phase ends and its far encounter phase starts on Aug. 6, 1989.
The near-encounter phase of the mission includes Voyager's closest approach to Neptune at 9 p.m. Pacific Daylight Time on Aug. 24, 1989, when the spacecraft passes just 4,850 kilometers (3,000 miles) from the planet's cloud tops. Five hours later, the spacecraft will fly about 39,000 kilometers (24,000 miles) from the planet's major moon Triton.
Voyager 2 is now 117 million kilometers (73 million miles) from Neptune. The Neptune flyby will be Voyager 2's fourth and final planetary encounter before the spacecraft heads out of the solar system to explore interstellar space.
Launched in 1977, Voyager 2 and its twin Voyager 1 have encountered Jupiter and Saturn. Voyager 2 went on to fly by Uranus in January 1986 while Voyager 1 continues its trek out of the solar system.
Now 4.271 billion kilometers (2.654 billion miles) from Earth, Voyager 2 is so far away that data radioed at the speed of light (186,000 miles per second) take nearly four hours to reach Earth. Voyager's images are being recorded on the spacecraft's tape recorders and will be played back to Earth beginning Tuesday morning.
The Voyager project is managed by the Jet Propulsion Laboratory for NASA's Office of Space Science and Applications.
NASA hears 'heartbeat' from Voyager 2 after inadvertant blackout
Washington (AFP) – NASA's distant Voyager 2 probe has sent a "heartbeat" signal to Earth after mission control mistakenly cut contact, the US space agency said Tuesday.
Issued on: 01/08/2023 - 16:36 Modified: 01/08/2023 - 17:49
Launched in 1977 to explore the outer planets and serve as a beacon of humanity to the wider universe, it is currently more than 12.3 billion miles (19.9 billion kilometers) from our planet -- well beyond the solar system.
A series of planned commands sent to Voyager 2 on July 21 "inadvertently caused the antenna to point two degrees away from Earth," NASA's Jet Propulsion Laboratory (JPL) said in a recent update.
This left it unable to transmit data or receive commands to its mission control -- a situation that was not expected to be resolved until it conducted an automated re-orientation maneuver on October 15.
But on Tuesday, Voyager project manager Suzanne Dodd told AFP the team enlisted the help of the Deep Space Network -- an international array of giant radio antennas, plus a few that orbit Earth -- in a last-ditch effort to re-establish contact sooner.
To their surprise, "this was successful in that we see the 'heartbeat' signal from the spacecraft," she said. "So we know the spacecraft is alive and operating. This buoyed our spirits."
The team is "now generating a new command to attempt to point the spacecraft antenna toward Earth," Dodd added, although she said there is only a "low probability" it will work.
Still, given October 15 is a long way away, NASA will keep trying to send up these commands.
Golden Record
While JPL built and operates Voyager spacecraft, the missions are now part of the NASA Heliophysics System Observatory.
Voyager 2 left the protective magnetic bubble provided by the Sun, called the heliosphere, in December 2018, and is currently traveling through the space between the stars.
Before leaving our solar system, it explored Jupiter and Saturn, and became the first and so far only spacecraft to visit Uranus and Neptune.
Voyager 1 was mankind's first spacecraft to enter the interstellar medium, in 2012, and is currently almost 15 billion miles from Earth.
Both Voyager spacecraft carry "Golden Records" -- 12-inch, gold-plated copper disks intended to convey the story of our world to extraterrestrials.
These include a map of our solar system, a piece of uranium that serves as a radioactive clock allowing recipients to date the spaceship's launch, and symbolic instructions that convey how to play the record.
The contents of the record, selected for NASA by a committee chaired by legendary astronomer Carl Sagan, include encoded images of life on Earth, as well as music and sounds that can be played using an included stylus.
For now, the Voyagers continue to transmit back scientific data, though their power banks are expected to be eventually depleted, sometime after 2025.
They will then continue to wander the Milky Way, potentially for eternity, in silence.
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Voyager 2 left our heliosphere and entered the local interstellar medium in 2018 and continues to travel outward at 36,000 miles per hour (which is 3.2 AU per year, or 1 light year per 18,600 years). As of 15 May 2024, Voyager 2 was approximately 12.651 billion miles from Earth (136.543 Astronomical Units from the Sun).
On the same date, the light travel time from voyager 2 to earth was approximately 18 hours, 51 minutes, 57 seconds. data are returned from the spacecraft at 160 bits per second, using a transmitter with about 25 watts () of power. for more details, see the real time odometer of distance from the earth and the sun where are the voyagers, nasa jpl voyager project home page, for more information contact john richardson at mit (e-mail: [email protected])..
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Interstellare raumfahrt voyager 2 bestätigt: da draußen gibt es eine grenze, hauptinhalt.
11. April 2024, 16:13 Uhr
Vor einem Jahr erreichte die Weltraumsonde Voyager 2 den interstellaren Raum. Die ausgewerteten Daten bestätigen jetzt: Am Rand unseres Sonnensystems gibt es einen ganz klare, messbare Grenze.
Wir zeigen mit Voyager 2 - und früher mit Voyager 1 -, dass es da draußen eine wirkliche Grenze gibt. Und es ist erstaunlich, wie Flüssigkeiten, einschließlich Plasmen, Grenzen bilden. Don Gurnett, Universität von Iowa
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Voyager-raumsonden nasa kann wieder mit sonde voyager 2 kommunizieren.
Keine anderen Raumsonden sind so weit ins All vorgedrungen wie Voyager 1 und Voyager 2. Im Juli 2023 hatte die NASA versehentlich den Kontakt zu Voyager 2 verloren. Nach rund zwei Wochen konnte er jedoch wieder hergestellt werden.
Stand: 07.08.2023
Die beiden Voyager-Sonden sind bereits seit mehr als 45 Jahren im All unterwegs, obwohl ihre Missionen ursprünglich nur auf vier Jahre angesetzt waren. Voyager 2 startete am 20. August 1977 ins All, ihre Schwestersonde Voyager 1 am 5. September 1977.
Voyager 2: Nach falschem Kommando verschollen im All
Der Speicher eines modernen Mobiltelefons ist drei Millionen Mal größer als der einer Voyager-Sonde.
Im Juli 2023 verlor die NASA versehentlich den Kontakt zur Raumsonde und die Kontrolle über Voyager 2: Flugkontrolleure schickten ihr einen falschen Befehl. Anschließend drehte sich die Antenne der Voyager 2 von der Erde weg. Das unterbrach die Kommunikation und die Sonde konnte weder Daten senden noch Befehle empfangen.
NASA konnte den Kontakt zur Raumsonde Voyager 2 wiederherstellen
Im August 2023, nach rund zwei Wochen ohne Kontakt, laufe die komplette Kommunikation wieder, teilte die US-Raumfahrtbehörde NASA mit. Die Raumsonde funktioniere normal und sei nach wie vor auf ihrer vorhergesagten Route.
Eine Raumkommunikationsstation im australischen Canberra habe Voyager 2 ein Signal geschickt, seine Antenne wieder zur Erde zu orientieren. 37 Stunden später sei die Bestätigung zurückgekommen, dass die Aktion funktioniert habe.
YouTube-Vorschau - es werden keine Daten von YouTube geladen.
Voyager 2 Launch
Ich möchte YouTube-Inhalte aktivieren und stimme zu, dass Daten von YouTube geladen werden. Meine Datenschutz-Einstellungen
Voyager 1 und Voyager 2 senden Signale aus weiter Ferne
Voyager 1 und 2 sind die zwei am weitesten entfernten Objekte aus menschlicher Hand. Voyager 2 ist etwa 20 Milliarden Kilometer von der Erde entfernt. Es dauert mehr als 18 Stunden, bis ein Signal aus dieser Entfernung die Erde erreicht.
Voyager 1 sendet wieder ordentlich
- <!-- --> Wo sind Voyager 1 und 2? [voyager.jpl.nasa.gov]
Voyager 1 zeigte zuletzt eine Altersschwäche, die sehr menschlich wirkt: Die Sonde sendete 2022 plötzlich wirre Daten.
<!-- --> NDR Info Wissen Erkundung des Weltalls Die Voyager-Raumsonden am Rand des Sonnensystems
Das Problem ist inzwischen gelöst: Offenbar sendete das Gerät plötzlich an einen alten, außer Betrieb genommenen Bordcomputer statt an den noch aktiven. Das konnte von der Erde aus behoben werden, jetzt kommen auch wieder ordentliche Daten an. Warum der Datenversand aber plötzlich auf den alten Computer gelenkt wurde, ist weiter unklar.
18.09.1977: Voyager 1 nimmt erstes Bild auf, auf dem Erde und Mond zusammen zu sehen sind
Voyager-sonden sind sehr weit von der erde entfernt, zum vergleich.
Die Sonne ist nur rund 150 Millionen von uns entfernt - eine Astronomische Einheit (AE). Der Zwergplanet Pluto kreist mit einem durchschnittlichen Abstand von vierzig AE um die Sonne: sechs Milliarden Kilometer. Die beiden Sonden sind inzwischen drei- bis viermal weiter weg.
Eine Fehleranalyse ist nicht ganz einfach, denn die beiden Voyager-Sonden sind sehr weit weg: Ein Signal zur mehr als 23 Milliarden Kilometer entfernten Voyager 1 braucht rund zwanzig Stunden, bis es die Sonde erreicht. Und nochmal knapp zwanzig Stunden vergehen, bis Voyagers Antwort zurück ist. Die Schwestersonde Voyager 2 ist derzeit fast zwanzig Milliarden Kilometer von der Erde entfernt (Stand: August 2023).
Beide Voyager-Sonden befinden sich im interstellaren Raum
Voyager-Sonden im interstellaren Raum
Keine andere Sonde ist je so weit geflogen. Inzwischen sind beide Voyager-Sonden im interstellaren Raum und haben damit den engsten Wirkungsbereich der Sonne verlassen: den Bereich ihrer starken Magnetfelder. Der interstellare Raum beginnt dort, wo die Heliopause der Sonne endet, der äußerste Rand ihrer Heliosphäre. Das ist Voyager 2 am 5. November 2018 gelungen, Voyager 1 hat die Heliosphäre dagegen schon 2012 verlassen.
Raumsonden immer noch im Sonnensystem
Noch viel weiter weg: die Oortsche Wolke
Dass die beiden Sonden die Heliosphäre verlassen haben, bedeutet nach Angaben der NASA aber nicht, dass sie auch das Sonnensystem verlassen haben. Als Grenze des Sonnensystems gilt eine Region außerhalb der Oortschen Wolke. Wenn der Kontakt zu Voyager 2 wieder hergestellt werden kann und die Probleme behoben werden können, werde es rund 300 Jahre dauern, bis Voyager 2 die Oortsche Wolke erreicht. Bis sie an deren äußerem Ende ankommt, vergehen wahrscheinlich noch einmal 30.000 Jahre. Trotzdem lieferten die beiden Sonden bereits jetzt Daten, die keine anderen Sonden sammeln können. Zum Beispiel, welche Form die Heliopause hat , also die Grenze zwischen Heliosphäre und interstellarem Raum.
Voyager verlässt unser Sonnensystem
Raumsonden bei Jupiter, Saturn, Uranus und Neptun
Voyagers Blick auf den Jupiter
Beide Sonden hatten ein Rendezvous mit Jupiter und Saturn, Voyager 2 besuchte außerdem noch Uranus und Neptun . Insgesamt nahmen die je eine Tonne schweren Voyager-Zwillinge 48 Monde unter die Lupe.
Voyager-Sonden knipsten Bilder von allen äußeren Planeten
<-- --> bayern 2 kalenderblatt voyager 1 nasa-sonde sendet bilder von den ringen des saturn.
Ziel der Voyager-Mission war es ursprünglich, die großen Gasplaneten zu erkunden. Voyager 1 besuchte am 5. März 1979 den Planeten Jupiter und am 11. November 1980 den Saturn. Die Raumsonde funkte die ersten detaillierten Bilder von deren Monden zur Erde. Voyager 2 passierte am 9. Juli 1979 den Planeten Jupiter und am 25. August 1981 den Saturn. Am 24. Januar 1986 flog die Raumsonde an Uranus vorbei und am 25. August 1989 an Neptun, mit nur knapp 5.000 Kilometern Abstand. Bis heute ist sie die einzige Sonde, die jemals dem blauen Gasriesen Neptun nahe kam. Die Bilder, die Voyager 2 von Neptun machte, prägen immer noch unser Bild von ihm.
Die Bilder und Daten, die die beiden Sonden zur Erde zurückfunkten, versetzten Forscher in Begeisterung. Bis heute sind nur wenige Sonden so weit in die Tiefe des Sonnensystems vorgedrungen, zuletzt die Pluto-Mission New Horizons .
"Wenige Missionen können je die Errungenschaften der Voyager-Sonden erreichen. Sie haben uns über die zuvor unbekannten Wunder des Universums aufgeklärt und die Menschheit inspiriert, unser Sonnensystem und alles darüber hinaus zu entdecken."
Thomas Zurbuchen, NASA-Manager
alpha-Centauri: Warum hat der Saturn Ringe?
Rüstige voyager-rentner - auch auf der erde.
Ein letzter Blick auf die Erde von Voyager 1
Die Voyager-Sonden sind besonders robust gebaut und mit Backup-Systemen versehen. Betrieben werden sie mit langlebigen Plutonium-Generatoren. Trotzdem schwinden ihre Kräfte Jahr für Jahr. Jährlich können die Sonden etwa vier Watt Leistung weniger produzieren. Um Energie zu sparen, werden daher nach und nach weitere Instrumente und Heizsysteme abgeschaltet.
Bei technischen Problemen müssen jahrzehntealte Dokumente oder gar in Rente gegangene NASA-Ingenieure konsultiert werden. "Die Technologie ist viele Generationen alt und es braucht jemanden mit Design-Erfahrung aus den 1970er-Jahren, um zu verstehen, wie die Sonden funktionieren und welche Updates gemacht werden können, damit sie heute und zukünftig weiter funktionieren können", sagt NASA-Managerin Suzanne Dodd.
Bis 2025 könnten einige der wissenschaftlichen Instrumente an Bord noch halten, vermutet die NASA. Aber selbst nach deren Ausfall muss die Reise der Voyager-Zwillinge nicht zu Ende sein. Wenn ihnen sonst nichts passiert, sausen sie auch dann noch mit einer Geschwindigkeit von rund 48.000 Stundenkilometern weiter durchs All.
Voyager-Sonden transportieren goldene Schallplatte für Außerirdische
<-- --> unser gruß an außerirdische voyager goldene schallplatte selbst hören.
Falls die Voyager-Sonden jemals auf Leben treffen sollten, sind sie bestens gerüstet. Beide Sonden transportieren eine goldene Schallplatte mit dem Titel "Sounds of Earth". Die vergoldeten Kupferscheiben mit einer Lebensdauer von angeblich 500 Millionen Jahren enthalten Bild- und Audiodateien über die Erde inklusive einer Anleitung zum Abspielen. "Freunde des Weltraums, wie geht es Euch. Habt Ihr schon gegessen? Besucht uns, wenn Ihr Zeit habt", so eine Grußbotschaft auf der Platte in der ostchinesischen Sprache Amoy. Insgesamt 55 verschiedene Sprachen kann sich der interessierte Außerirdische auf "Sounds of Earth" anhören. Die deutsche Botschaft lautet zum Beispiel "Herzliche Grüße an alle". Darüber hinaus sind auf der Platte diverse Geräusche und eine Musikauswahl gespeichert, die von Chuck Berry und Louis Armstrong über melanesische Panflöten bis Mozart und Beethoven reicht.
"Da die Sonden Milliarden von Jahren halten könnten, könnten diese Datenträger-Zeitkapseln einmal die einzigen verbliebenen Spuren der Menschheit sein."
Sendungen über die Raumsonden Voyager 1 und 2
- "Nachrichten in: Die Frühaufdreher" : Bayern 3, 01.08.2023, 05:00 Uhr
- "Die Voyager-Raumsonden am Rand des Sonnensystems" : Wissen, NDR Info, 16.09.2022
- "Warum hat der Saturn Ringe?" : alpha-centauri, ARD alpha, 03.06.2022, 14.30 Uhr
- "18.09.1977: Voyager 1 nimmt erstes Bild auf, auf dem Erde und Mond zusammen zu sehen sind": Bayern 2, 18.09.2020, 09.50 Uhr
- "Interstellare Reise - Was die Raumsonde Voyager über die Grenzen des Sonnensystems erzählt" : IQ - Wissenschaft und Forschung, Bayern 2, 04.11.2019, 18:05 Uhr
- "Sonde Voyager startet mit Visitenkarte der Erde" : Archivradio - Geschichte im Original, SWR2, 22.05.2019
- 12.11.1980: Voyager 1 sendet Bilder von den Ringen des Saturn , Das Kalenderblatt, Bayern 2, 12.11.2009
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Voyager 2: Nasa picks up 'heartbeat' signal after sending wrong command
- Published 1 August 2023
Voyager 2 has stopped receiving commands or sending data back to Earth
Nasa has picked up a "heartbeat" signal from its Voyager 2 probe after it lost contact with it billions of miles away from Earth, the space agency said.
Last month, the spacecraft - exploring the universe since 1977 - tilted its antenna to point two degrees away from Earth after a wrong command was sent.
As a result, the probe stopped receiving commands or sending data.
But on Tuesday, Nasa said a signal from Voyager 2 was picked up during a regular scan of the sky.
Where is Voyager 2 now?
Voyager 2 is more than 12.3 billion miles (19.9 billion km) from Earth, where it is hurtling at an estimated 34,390mph (55,346km/h) through interstellar space - the space between the stars.
Since 21 July, the probe has been unable to receive commands or send back data to Nasa's Deep Space Network - an array of giant radio antennas across the world - and the spacecraft is not receiving commands from ground controllers.
However, there is hope for the probe, with contact - albeit limited - now re-established.
Given that the space-craft is almost 20 billion kilometres (more than 12 billion miles) away, that signal will have taken around 18 hours to reach earth.
Nasa said the news confirms Voyager 2 is still broadcasting and is in "good health."
Earlier on Monday, the space agency said its huge dish in Australia's capital, Canberra, was trying to detect any stray signals from Voyager 2.
The antenna has also been bombarding Voyager 2's area with the correct command, in the hope of making contact with the probe, said Nasa's Jet Propulsion Laboratory, which manages the Voyager missions.
While fuller communication is not yet established, Voyager 2 is programmed to reset its orientation multiple times each year to keep its antenna pointing at Earth. The next reset is due on 15 October, which Nasa says "should enable communication to resume".
In the meantime, Nasa expects the spacecraft laden with science instruments to remain on its planned trajectory through the universe.
The probe has been floating in space since 1977 when it was launched to study the outer solar system.
Voyager 2 and its twin Voyager 1 are the only spacecraft ever to operate outside the heliosphere, the protective bubble of particles and magnetic fields generated by the Sun. They reached interstellar space in 2018 and 2012 respectively.
The probes were designed to take advantage of a rare alignment of outer planets, which occurs about every 176 years, to explore Jupiter and Saturn.
Voyager 2 is the only spacecraft ever to fly by Neptune and Uranus, while Voyager 1 is now nearly 15 billion miles away from Earth, making it humanity's most distant spacecraft.
"You might have heard... Voyager 2 is taking a break from sending data until October. In the meantime, I'm out here, almost 15 billion miles (24 billion km) from Earth and doing fine! - V1", wrote Nasa on X, formerly known as Twitter, last week.
Each spacecraft carries a Golden Record with Earth's sounds, pictures, and messages intended to communicate a story of our world to extra-terrestrials.
Voyager: The weird space that lies outside our Solar System
The Pale Blue Dot: How Voyager captured the famous image of Earth
Voyager 2 launched 16 days before its twin, Voyager 1
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- Published 26 February 2013
- Object Information
- Planetarium
Voyager 1 live position and data
This page shows Voyager 1 location and other relevant astronomical data in real time. The celestial coordinates, magnitude, distances and speed are updated in real time and are computed using high quality data sets provided by the JPL Horizons ephemeris service (see acknowledgements for details). The sky map shown in the background represents a rectangular portion of the sky 60x40 arcminutes wide. By comparison the diameter of the full Moon is about 30 arcmins, so the full horizontal extent of the map is approximately 2 full Moons wide. Depending on the device you are using, the map can be dragged horizondally or vertically using the mouse or touchscreen. The deep sky image in the background is provided by the Digitized Sky Survey ( acknowledgements ).
Current close conjunctions
List of bright objects (stars brighter than magnitude 9.0 and galaxies brighter than magmitude 14.0) close to Voyager 1 (less than 1.5 degrees):
Additional resources
- 15 Days Ephemerides
- Interactive Sky Map (Planetarium)
- Rise & Set Times
- Distance from Earth
Astronomy databases
- The Digitized Sky Survey, a photographic survey of the whole sky created using images from different telescopes, including the Oschin Schmidt Telescope on Palomar Mountain
- The Hipparcos Star Catalogue, containing more than 100.000 bright stars
- The PGC 2003 Catalogue, containing information about 1 million galaxies
- The GSC 2.3 Catalogue, containing information about more than 2 billion stars and galaxies
- 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
News | December 10, 2018
Nasa's voyager 2 probe enters interstellar space.
For the second time in history, a human-made object has reached the space between the stars. NASA's Voyager 2 probe now has exited the heliosphere - the protective bubble of particles and magnetic fields created by the Sun.
Members of NASA's Voyager team will discuss the findings at a news conference at 11 a.m. EST (8 a.m. PST) today at the meeting of the American Geophysical Union (AGU) in Washington. The news conference will stream live on the agency's website .
Comparing data from different instruments aboard the trailblazing spacecraft, mission scientists determined the probe crossed the outer edge of the heliosphere on Nov. 5. This boundary, called the heliopause, is where the tenuous, hot solar wind meets the cold, dense interstellar medium. Its twin, Voyager 1 , crossed this boundary in 2012, but Voyager 2 carries a working instrument that will provide first-of-its-kind observations of the nature of this gateway into interstellar space.
Voyager 2 now is slightly more than 11 billion miles (18 billion kilometers) from Earth. Mission operators still can communicate with Voyager 2 as it enters this new phase of its journey, but information - moving at the speed of light - takes about 16.5 hours to travel from the spacecraft to Earth. By comparison, light traveling from the Sun takes about eight minutes to reach Earth.
The most compelling evidence of Voyager 2's exit from the heliosphere came from its onboard Plasma Science Experiment ( PLS ), an instrument that stopped working on Voyager 1 in 1980, long before that probe crossed the heliopause. Until recently, the space surrounding Voyager 2 was filled predominantly with plasma flowing out from our Sun. This outflow, called the solar wind, creates a bubble - the heliosphere - that envelopes the planets in our solar system. The PLS uses the electrical current of the plasma to detect the speed, density, temperature, pressure and flux of the solar wind. The PLS aboard Voyager 2 observed a steep decline in the speed of the solar wind particles on Nov. 5. Since that date, the plasma instrument has observed no solar wind flow in the environment around Voyager 2, which makes mission scientists confident the probe has left the heliosphere.
"Working on Voyager makes me feel like an explorer, because everything we're seeing is new," said John Richardson, principal investigator for the PLS instrument and a principal research scientist at the Massachusetts Institute of Technology in Cambridge. "Even though Voyager 1 crossed the heliopause in 2012, it did so at a different place and a different time, and without the PLS data. So we're still seeing things that no one has seen before."
In addition to the plasma data, Voyager's science team members have seen evidence from three other onboard instruments - the cosmic ray subsystem, the low energy charged particle instrument and the magnetometer - that is consistent with the conclusion that Voyager 2 has crossed the heliopause. Voyager's team members are eager to continue to study the data from these other onboard instruments to get a clearer picture of the environment through which Voyager 2 is traveling.
"There is still a lot to learn about the region of interstellar space immediately beyond the heliopause," said Ed Stone, Voyager project scientist based at Caltech in Pasadena, California.
Together, the two Voyagers provide a detailed glimpse of how our heliosphere interacts with the constant interstellar wind flowing from beyond. Their observations complement data from NASA's Interstellar Boundary Explorer ( IBEX ), a mission that is remotely sensing that boundary. NASA also is preparing an additional mission - the upcoming Interstellar Mapping and Acceleration Probe ( IMAP ), due to launch in 2024 - to capitalize on the Voyagers' observations.
"Voyager has a very special place for us in our heliophysics fleet," said Nicola Fox, director of the Heliophysics Division at NASA Headquarters. "Our studies start at the Sun and extend out to everything the solar wind touches. To have the Voyagers sending back information about the edge of the Sun's influence gives us an unprecedented glimpse of truly uncharted territory."
While the probes have left the heliosphere, Voyager 1 and Voyager 2 have not yet left the solar system, and won't be leaving anytime soon. The boundary of the solar system is considered to be beyond the outer edge of the Oort Cloud , a collection of small objects that are still under the influence of the Sun's gravity. The width of the Oort Cloud is not known precisely, but it is estimated to begin at about 1,000 astronomical units (AU) from the Sun and to extend to about 100,000 AU. One AU is the distance from the Sun to Earth. It will take about 300 years for Voyager 2 to reach the inner edge of the Oort Cloud and possibly 30,000 years to fly beyond it.
The Voyager probes are powered using heat from the decay of radioactive material, contained in a device called a radioisotope thermal generator ( RTG ). The power output of the RTGs diminishes by about four watts per year, which means that various parts of the Voyagers, including the cameras on both spacecraft, have been turned off over time to manage power.
"I think we're all happy and relieved that the Voyager probes have both operated long enough to make it past this milestone," said Suzanne Dodd, Voyager project manager at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California. "This is what we've all been waiting for. Now we're looking forward to what we'll be able to learn from having both probes outside the heliopause."
Voyager 2 launched in 1977, 16 days before Voyager 1, and both have traveled well beyond their original destinations. The spacecraft were built to last five years and conduct close-up studies of Jupiter and Saturn. However, as the mission continued, additional flybys of the two outermost giant planets, Uranus and Neptune, proved possible. As the spacecraft flew across the solar system, remote-control reprogramming was used to endow the Voyagers with greater capabilities than they possessed when they left Earth. Their two-planet mission became a four-planet mission. Their five-year lifespans have stretched to 41 years, making Voyager 2 NASA's longest running mission.
The Voyager story has impacted not only generations of current and future scientists and engineers, but also Earth's culture, including film, art and music. Each spacecraft carries a Golden Record of Earth sounds, pictures and messages. Since the spacecraft could last billions of years, these circular time capsules could one day be the only traces of human civilization.
Voyager's mission controllers communicate with the probes using NASA's Deep Space Network ( DSN ), a global system for communicating with interplanetary spacecraft. The DSN consists of three clusters of antennas inGoldstone, California; Madrid, Spain; and Canberra, Australia.
The Voyager Interstellar Mission is a part of NASA's Heliophysics System Observatory, sponsored by the Heliophysics Division of NASA's Science Mission Directorate in Washington. JPL built and operates the twin Voyager spacecraft. NASA's DSN, managed by JPL, is an international network of antennas that supports interplanetary spacecraft missions and radio and radar astronomy observations for the exploration of the solar system and the universe. The network also supports selected Earth-orbiting missions. The Commonwealth Scientific and Industrial Research Organisation, Australia's national science agency, operates both the Canberra Deep Space Communication Complex, part of the DSN, and the Parkes Observatory, which NASA has been using to downlink data from Voyager 2 since Nov. 8.
For more information about the Voyager mission, visit:
- https://www.nasa.gov/voyager
More information about NASA's Heliophysics missions is available online at:
https://www.nasa.gov/sunearth
News Media Contact
Calla Cofield Jet Propulsion Laboratory, Pasadena, Calif. 626-808-2469 [email protected] Dwayne Brown / Karen Fox NASA Headquarters, Washington 202-358-1726 / 301-286-6284 [email protected] / [email protected]
News Release: 2018-283
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VOYAGER 2 Crude Oil Tanker, IMO 9102930
Where is the current position of voyager 2 presently vessel voyager 2 is a crude oil tanker ship sailing under the flag of comoros . her imo number is 9102930 and mmsi number is 620301000. main ship particulars are length of 270 m and beam of 44 m. maps show the following voyage data - present location, next port, estimated (eta) and predicted time of arrival (pta), speed, course, draught, photos, videos, local time, utc time..
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VOYAGER 2 current position is received by AIS. Ship info reports, fleet analysis, company analyses, address analyses, technical specifications, tonnages, management details, addresses, classification society data and all other relevant statistics are derived from Marine Vessel Traffic database. The data is for informational purposes only and Marine Vessel Traffic is not responsible for the accuracy and reliability of data reported above herein.
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Note: Because Earth moves around the Sun faster than Voyager 1 or Voyager 2 is traveling from Earth, the one-way light time between Earth and each spacecraft actually decreases at certain times of the year. Cosmic Ray Data: This meter depicts the dramatic changes in readings by Voyager's cosmic ray instrument. The instrument detected a dip in ...
The web page does not provide the current position of Voyager 2, but it shows the distance from Earth and Sun, and the one-way light time. It also features news, videos, images, and information about the Voyager mission and the Golden Record.
NASA's Voyager 2 is the second spacecraft to enter interstellar space. On Dec. 10, 2018, the spacecraft joined its twin - Voyager 1 - as the only human-made objects to enter the space between the stars. Voyager 2 is the only spacecraft to study all four of the solar system's giant planets at close range. Voyager 2 discovered a 14th moon at ...
About the mission. The Voyager 2 spacecraft, which has been in operation since 1977 and is the only spacecraft to have ever visited Uranus and Neptune, has made its way to interstellar space, where its twin spacecraft, Voyager 1, has resided since August 2012. During its travels through the outer solar system, Voyager 2 visited all four gas ...
Mission Overview. The twin Voyager 1 and 2 spacecraft are exploring where nothing from Earth has flown before. Continuing on their more-than-40-year journey since their 1977 launches, they each are much farther away from Earth and the sun than Pluto. In August 2012, Voyager 1 made the historic entry into interstellar space, the region between ...
Dec 10, 2018. RELEASE 18-115. This illustration shows the position of NASA's Voyager 1 and Voyager 2 probes, outside of the heliosphere, a protective bubble created by the Sun that extends well past the orbit of Pluto. Credits: NASA/JPL-Caltech. For the second time in history, a human-made object has reached the space between the stars.
Voyager 1, the faster of the two probes, is currently over 13.6 billion miles (22 billion kilometers) from the Sun, while Voyager 2 is 11.3 billion miles (18.2 billion kilometers) from the Sun. It takes light about 16.5 hours to travel from Voyager 2 to Earth. By comparison, light traveling from the Sun takes about eight minutes to reach Earth.
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. Frequently updated reports on the spacecraft mission can be heard August 19-31 by phoning (900) 590-1234. Cost for each call on this 900 number is 45 cents for the first minute ...
Voyager 2 is a space probe launched by NASA on August 20, 1977, as a part of the Voyager program. ... The position of Voyager 2 in December 2018. Note the vast distances condensed into a logarithmic scale: Earth is one astronomical unit (AU) from the Sun; Saturn is at 10 AU, and the heliopause is at around 120 AU. Neptune is 30.1 AU from the ...
Launched in 1977, Voyager 2 and its twin Voyager 1 have encountered Jupiter and Saturn. Voyager 2 went on to fly by Uranus in January 1986 while Voyager 1 continues its trek out of the solar system. Now 4.271 billion kilometers (2.654 billion miles) from Earth, Voyager 2 is so far away that data radioed at the speed of light (186,000 miles per ...
The Voyager project is managed by the Jet Propulsion Laboratory for NASA's Office of Space Science and Applications. 818-354-5011. 1989-1246. NASA's Voyager 2 spacecraft today entered the observatoryphase of its flyby of Neptune, signaling the beginning of its final planetary encounter after nearly 12 years of exploring the outer solar system.
A series of planned commands sent to Voyager 2 on July 21 "inadvertently caused the antenna to point two degrees away from Earth," NASA's Jet Propulsion Laboratory (JPL) said in a recent update.
MIT Space Plasma Group. Voyager Plasma Science Experiment. Plasma data measured by Voyager 2 up through 9 May 2024 (2024/130) Voyager 2 left our heliosphere and entered the local interstellar medium in 2018 and continues to travel outward at 36,000 miles per hour (which is 3.2 AU per year, or 1 light year per 18,600 years).
Vor einem Jahr erreichte die Weltraumsonde Voyager 2 den interstellaren Raum. Die ausgewerteten Daten bestätigen jetzt: Am Rand unseres Sonnensystems gibt es einen ganz klare, messbare Grenze.
Die NASA konnte nach zwei Wochen ohne Kommunikation mit der Raumsonde Voyager 2 wieder Kontakt aufnehmen. Die Sonde befindet sich im interstellaren Raum, aber ihre genaue Position ist noch unbekannt.
Voyager 2 is more than 12.3 billion miles (19.9 billion km) from Earth, where it is hurtling at an estimated 34,390mph (55,346km/h) through interstellar space - the space between the stars.
Voyager 1 live position and data. This page shows Voyager 1 location and other relevant astronomical data in real time. The celestial coordinates, magnitude, distances and speed are updated in real time and are computed using high quality data sets provided by the JPL Horizons ephemeris service (see acknowledgements for details). The sky map shown in the background represents a rectangular ...
NASA's Voyager 2 Probe Enters Interstellar Space. This illustration shows the position of NASA's Voyager 1 and Voyager 2 probes, outside of the heliosphere, a protective bubble created by the Sun that extends well past the orbit of Pluto. Voyager 1 exited the heliosphere in August 2012. Voyager 2 exited at a different location in November 2018.
Where is the current position of VOYAGER 2 presently? Vessel VOYAGER 2 is a tanker ship sailing under the flag of Comoros. Her IMO number is 9102930 and MMSI number is 620301000. Main ship particulars are length of 270 m and beam of 44 m. Maps below show the following voyage data - Present Location, NExt port, Estimated (ETA) and Prediced Time of arrival (PTA), Speed, Course, Draught, Photos ...