Maybe it's gone beyond the reach of space-time!
Voyager 1 stops communicating with Earth
311–320 of 649 posts
Re: Voyager 1 stops communicating with Earth
#312Earlier quoted context omitted.
That's a strangely high bar. As if Voyager had some nonnegligible effect outside of the Solar system.
If something like Voyager would arrive from outside our Solar system it would be the event of the millenium.
There's every possibility that neither Voyager will ever arrive anywhere ever again. If they do, it's going to be after our galaxy collides with another, and the place they arrive at may not even exist yet.
https://www.space.com/predicting-voyager-golden-records-dist...
Re: Voyager 1 stops communicating with Earth
#313Re: Voyager 1 stops communicating with Earth
#314Earlier quoted context omitted.
>Communication is exchange of information. https://en.wikipedia.org/wiki/Models_of_communication#:~:tex... . One-way communication is a valid type of "communication".
Not in this context. They are sending commands. The spacecraft is not responding to them. This is exactly a breakdown of the communication, which is exactly what's mentioned in the first paragraph of the article.
Sorry but you're still wrong. You're assuming the spacecraft isn't receiving the commands. You don't know that. Nobody really does. All that is necessary for this to be "communication" is for the transmitter to send and the receiver to receive, and the receiver may well be working but the transmitter on the spacecraft may not be working, making that scenario one-way communication. It takes far less power to receive than it does to transmit, so it would be no wonder if the spacecraft were still receiving commands but unable to send responses.
If the spacecraft is known to not be receiving, I think the term "broadcasting" would apply.
Re: Voyager 1 stops communicating with Earth
#315Always enjoyed this bit below about Voyager 1 a good reminder of how vast the universe is not too mention just to the oort cloud! "Even though Voyager 1 travels about a million miles per day, the spacecraft will take about 300 years to reach the inner boundary of the Oort Cloud and probably another 30,000 years to exit the far side." I have to hope that in the distant future we will hopefully have spaceships that wil…
1 million miles per day is an insane figure
You do it every day! The Earth itself moves faster than Voyager -- 1.6 million miles per day.
Re: Voyager 1 stops communicating with Earth
#316One of my favorite tech legends is that apparently Voyager 1 launched with a Viterbi encoder, even though there was no computer on Earth at the time fast enough to decode it. After a number of years Moore's Law caught up and they remotely switched over to Viterbi for more efficient transmissions.
I don’t know how well it holds today but for some time it was known that running certain computations on existing hardware would take longer than waiting for new hardware and running when available.
Re: Voyager 1 stops communicating with Earth
#317Earlier quoted context omitted.
They are still, indeed, orbiting the sun. In the same way the earths atmosphere is orbiting the earth.
No, they are traveling at velocities far exceeding the gravitational escape velocity of the sun. There is no meaningful sense in which they are orbiting.
Except they aren’t, which is why they are there and there is a heliopause instead of them being in interstellar space and there not being a heliopause.
If they had greater than escape velocity, they’d be escaping and we’d not see the graph we see.
Re: Voyager 1 stops communicating with Earth
#318Earlier quoted context omitted.
Best guess: You get particles orbiting the sun, until you pass a point where the sun's gravity is too weak to hold them, and from that point you basically only see things who's escape trajectory intersects with yours
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I enjoyed reading their guess. Since he started the comment with 'I guess', it seems harmless enough. You're comment, otoh, is pretty rude.
Re: Voyager 1 stops communicating with Earth
#319Always enjoyed this bit below about Voyager 1 a good reminder of how vast the universe is not too mention just to the oort cloud! "Even though Voyager 1 travels about a million miles per day, the spacecraft will take about 300 years to reach the inner boundary of the Oort Cloud and probably another 30,000 years to exit the far side." I have to hope that in the distant future we will hopefully have spaceships that wil…
Reminds me of Monty Python's Galaxy Song
https://www.youtube.com/watch?v=buqtdpuZxvk
https://en.wikipedia.org/wiki/Galaxy_Song#Accuracy_of_astron...
Re: Voyager 1 stops communicating with Earth
#320Always enjoyed this bit below about Voyager 1 a good reminder of how vast the universe is not too mention just to the oort cloud! "Even though Voyager 1 travels about a million miles per day, the spacecraft will take about 300 years to reach the inner boundary of the Oort Cloud and probably another 30,000 years to exit the far side." I have to hope that in the distant future we will hopefully have spaceships that wil…
Wow, so the heliopause is inscribed well, well, well within the port cloud?
Insane