Are Voyager 1 and 2 Still Sending Data Back to Earth?

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Discussion Overview

The discussion centers around the current status of the Voyager 1 and 2 missions, specifically whether they are still sending data back to Earth and what type of data is being received. The scope includes technical details about the probes' locations, the nature of the data collected, and future prospects for the missions.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants note that data is still being received from the Voyager missions, primarily related to measurements of the solar wind.
  • Others argue that there are no current photos being transmitted because the probes are in regions of space with little of visual interest.
  • A participant questions the assertion that there is nothing worth photographing at over 100 AU, prompting discussion about the future of the Voyager missions.
  • It is proposed that while the universe is mostly empty, there is a possibility that the Voyagers might encounter something interesting, although this is considered rare.
  • One participant explains the future trajectory of the probes, mentioning their passage through significant boundaries such as the termination shock and heliopause, and the implications of these events for their data transmission capabilities.
  • Current estimates suggest that the probes may continue to send data for another 13 years, but increasing distance will complicate data reception.
  • A later reply mentions that Voyager 2 has recently crossed the termination shock.

Areas of Agreement / Disagreement

Participants generally agree that the Voyager probes are still operational and sending data, but there is disagreement regarding the significance of their current observations and the likelihood of encountering interesting phenomena in the future. The discussion remains unresolved regarding the implications of their future trajectories.

Contextual Notes

Participants express uncertainty about the nature of the data being collected and the conditions affecting data transmission, including the probes' increasing distance from Earth and the limitations of their power supply.

Who May Find This Useful

Individuals interested in space exploration, the Voyager missions, and the scientific data being collected from interstellar space may find this discussion relevant.

Euclid
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I heard that we are still receiving data from the voyager missions. Are the results available publicly? If so, where can I find the latest photos?
 
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There are no current photos from the Voyagers, for the simple reason that there's not really anything for them to be photographing. They're current headed towards interstellar space. The data we are receiving from them these days mostly relates to measurements of the solar wind.
 
You mean to say that at over 100 AU there's just nothing worth looking at? What then is the future of Voyager?
 
The universe as a whole is pretty empty of large bodies. So, I suppose it's possible that one of the Voyagers might pass within sight of something interesting. But, that should be so rare that it's just not worth using up any memory to keep taking pictures. And, besides, the bandwidth for data transmission back to Earth these days is quite small.

As for the future, the Voyager probes will drift off into interstellar space. At least Voyager 1, and possibly Voyager 2 as well, has already passed through what's called the termination shock - the point at which the speed of the solar wind drops to below the speed of sound in the interstellar medium. At some point over the next few years, they should pass the heliopause, which is where the solar wind is finally stopped by interstellar winds. And, at some point after that, they'll pass the bow shock, where the interstellar winds go sub-sonic due to the interaction with the solar wind. Once they're passed that, they're basically outside the influence of the sun and they'll drift on into the galaxy at large.

Current estimates suggest that the probes ought to have enough power to continue returning scientific data for another 13 years or so, although their increasing distance makes it progressively harder to receive the data.

Once their power runs out, they'll be little more than space debris drifting about the galaxy.
 
Just for those interested, Voyager 2 very recently crossed the termination.
 

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