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Voyager 1 stops communicating with Earth

cnn.com

431–440 of 649 posts

Re: Voyager 1 stops communicating with Earth

#431

Earlier quoted context omitted.

> 1977: peak humanity I think the LGBTQ and minority communities would like to have a word. Don't get sucked into the golden age fallacy.

I thought the context was science, subject space.

Well you said "1977: peak humanity" and not "1977: peak space exploration and science"

Re: Voyager 1 stops communicating with Earth

#432

A less alarmist and clickbait article can be found here: https://www.popsci.com/science/voyager-computer-issue/ NASA press release here: https://blogs.nasa.gov/sunspot/2023/12/12/engineers-working-... TL;DR - Voyager is sending back bad data, they're working on it.

Thank you; wish there would be a pinning comments feature or something that could refute, straighten things up under hot topics.

Re: Voyager 1 stops communicating with Earth

#434
post #421

Earlier quoted context omitted.

> the label wanted more in licensing fees than the whole thing cost to produce. Hopefully this message was sent instead.

If it was communicated by radio at any point, the message was technically broadcast to pick up by sufficiently advanced receivers...

Approximately 1000 years to get to Omicron Persei 8, according to Futurama

Re: Voyager 1 stops communicating with Earth

#435
post #397

Earlier quoted context omitted.

Without a private key that is readily accessible? Worthless,

Wallet by definition has private key within it. Without key is just an address.

I think ‘readily accessible’ was the important bit.

Re: Voyager 1 stops communicating with Earth

#436
post #339
post #282

One of my favorite facts ever is that Voyager 1 contains something called the Voyager Golden Record [1]. It has the following quote written: This is a present from a small, distant world, a token of our sounds, our science, our images, our music, our thoughts and our feelings. We are attempting to survive our time so we may live into yours. I get chills everytime I think about this. I hope we can recover from this ev…

The Golden Record was supposed to include the Beetles "Here Comes The Sun" but the label wanted more in licensing fees than the whole thing cost to produce.

Yoko trying to collect royalties from aliens in outerspace was not on my bingo card.

Re: Voyager 1 stops communicating with Earth

#437

Earlier quoted context omitted.

My life archive is available to my heirs and successors as long as they know the LUKS password for any of the numerous storage devices I leave behind. It’s risky though — the passwords aren’t known to them yet and one logistical slip up means the disk may be unusable. That is, however, until some point in the future when they will have a computer powerful enough to just break the key and feast upon my cat photos, tax…

If the contents of your computer is anything like the contents of most old people's attics, there is a good chance your descendants really don't want to go through all of it. They'll just chuck it in the trash without even opening it. Turns out the next generation has their own life to worry about, and doesn't care much for their ancestors' stuff (unless it's money... they love money...).

I don't think this is universally true. Some people actually make an effort to sort the stuff of their grandparents in the attic and figure out what still has some (emotional) value. But it's probably a minority of people.

Re: Voyager 1 stops communicating with Earth

#438

Earlier quoted context omitted.

I think launching stuff with nuclear RTGs would probably be met with red tape :(. Even if they are basically impossible to destroy even with a failed launch. I'm sure it will happen again but sadly not as fast or as often as I wish we would.

Almost everything uses RTGs now if it's going to be far from the sun (like past mars).

Ahhh I heard there was controversy for some launches. I'm very glad I'm wrong, I think RTGs are so awesome and the closest we have to sci Fi energy generation in space.

Re: Voyager 1 stops communicating with Earth

#439

Earlier quoted context omitted.

My life archive is available to my heirs and successors as long as they know the LUKS password for any of the numerous storage devices I leave behind. It’s risky though — the passwords aren’t known to them yet and one logistical slip up means the disk may be unusable. That is, however, until some point in the future when they will have a computer powerful enough to just break the key and feast upon my cat photos, tax…

If the contents of your computer is anything like the contents of most old people's attics, there is a good chance your descendants really don't want to go through all of it. They'll just chuck it in the trash without even opening it. Turns out the next generation has their own life to worry about, and doesn't care much for their ancestors' stuff (unless it's money... they love money...).

But after enough time passes, lots of people do get interested in their ancestors. That's why DNA ancestry services are a big business - people get curious about where their unknown farther relatives came from. I guess there's just less mystery about people you actually knew.

Re: Voyager 1 stops communicating with Earth

#440

Earlier quoted context omitted.

According to Wikipedia, the abrupt change occurs at the point when the solar wind's speed decreases into the subsonic range (speed of sound in the interstellar medium is approximately 100km/s and the sun emits the particles that makeup the solar wind at approximately 400km/s). This transition to a subsonic regime causes compression waves to form, and causes the rapid drop off.

I didn't know that the speed of sound in the interstellar medium is 100 km/s. That seems surprisingly high, given that there's more atmospheric material here on the surface of Earth, and the speed of sound is only about 330 m/s. How can sound travel so fast in the interstellar medium?

In an ideal gas, speed of sound depends on the temperature and molar mass, but not density as the density terms cancel out: https://en.wikipedia.org/wiki/Ideal_gas#Speed_of_sound

It's hot, so the speed of sound is high.

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