Author Topic: Voyager 1 & 2 still alive and kickin.  (Read 1395 times)

Offline Conrad

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Voyager 1 & 2 still alive and kickin.
« on: December 04, 2012, 04:51:12 am »
http://www.cnn.com/2012/12/03/us/space-voyager-solar-system/index.html?hpt=hp_c3


An artist's concept of NASA's Voyager spacecraft, which is now about 11 billion miles from the sun, NASA said.

Are we there yet? If you're Voyager 1 and you're looking for a spot beyond the end of our solar system, the answer is no.
 
NASA officials have been saying for months that Voyager 1 is almost there when it comes to interstellar space as it continues the longest road trip in the history of mankind.
 
Voyager 1 and Voyager 2 took off 16 days apart in 1977, and Voyager 1 is now about 11 billion miles (18 billion kilometers) from the sun.
 
On Monday, project officials said new information sent back from the ship yielded a surprising result.
 
"If we would have only looked at particle data alone, we would have said we're out of the solar system," said Tom Krimigis, a scientist from Johns Hopkins University who examines data on low-energy charged particles. "But nature is very imaginative, and Lucy pulled up the football again."
 
The Voyager team believes this region is where lines of magnetic particles from the solar system are meeting particles from interstellar space.
 
Because the direction of the magnetic lines is unchanged, the project members count this as part of the solar system. When the direction changes, Voyager 1 will finally be in interstellar space.
 
"We believe this is the last leg of our journey to interstellar space," said project member Edward Stone of the California Institute of Technology. "Our best guess is it's likely just a few months to a couple years away. The new region isn't what we expected, but we've come to expect the unexpected from Voyager."
 
The spacecraft entered the new region in July, fueling predictions it was getting close to the edge of the solar system.
 
Voyager 2, which is on a different flight path, is a few billion miles closer to the sun.
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Offline VirginiaJim

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #1 on: December 04, 2012, 04:57:52 am »
Not my Voyager XII, though.
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Offline Conrad

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #2 on: December 04, 2012, 05:09:43 am »
Not my Voyager XII, though.

Maybe it needs to be launched into space?
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Offline VirginiaJim

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #3 on: December 04, 2012, 05:17:15 am »
I'm not sure it couldn't go fast enough to escape Earth's gravity...the C14 on the other hand, could (but only the 08 model).  The other colors aren't fast enough.
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Offline Cholla

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #4 on: December 04, 2012, 12:31:53 pm »
But the battery will shoot craps.
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Offline Rhino

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #5 on: December 04, 2012, 04:12:15 pm »
How is that thing still functioning? Now that's engineering!

Offline Conrad

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #6 on: December 05, 2012, 04:24:05 am »
It's amazing. NASA needs to take some lessons from the Voyager crew!
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Offline Nosmo

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #7 on: December 05, 2012, 10:18:15 am »
Simply amazing.  Sometimes we just get things right.  Voyagers, moon landings, B-52s, SR-71, and other amazing engineering feats that just go and go.  Look at the Mars rover that has been going for several years, was only supposed to last a couple of months.

Then again, I've been going for 57 years, which is a lot longer than anyone expected. ;D
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Offline Conrad

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #8 on: December 11, 2018, 06:29:09 am »
Voyager 2 has left the building!

http://spaceweather.com/

Voyager 2 has exited the sun's magnetic bubble and entered interstellar space. Mission scientists announced the breakthrough earlier today at the American Geophysical Union meeting in Washington DC. Its twin, Voyager 1, crossed the same boundary in 2012, but Voyager 2's crossing is arguably more significant because it carries a working instrument that can sense interstellar plasmas, providing the first in situ sampling of matter between the stars.

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. Until recently, Voyager 2 was surrounded mainly by the solar wind--a type of plasma flowing outward from the sun. On Nov. 5th, Voyager 2's plasma instrument observed a sharp decline in the solar wind, and since that date, it has observed no solar wind flow--a clear sign that the probe has left the heliosphere.

Replacing the solar wind is a blizzard of galactic cosmic rays. The sun's magnetic field substantially protects the solar system from cosmic rays, fending off the high energy debris of supernova explosions in the Milky Way and elsewhere. Now that Voyager 2 has exited that protective shell, it is baldly exposed to cosmic rays, and its cosmic ray subsystem is registering a surge.

Launched in 1977, 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.

The Voyager probes are powered using heat from the decay of radioactive material, contained in 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. Thanks to these precautions, the Voyagers could continue to send back at least some data for years to come.

"There is still a lot to learn about the region of interstellar space immediately beyond the heliosphere," said Ed Stone, Voyager project scientist based at Caltech in Pasadena, California.
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Offline VirginiaJim

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #9 on: December 11, 2018, 06:54:20 am »
All is well with the world now.. :thumbs:   Hopefully they won't run into that wall that surrounds our solar system as they won't have enough time to brake.


https://www.dailymail.co.uk/sciencetech/article-6062617/Nasas-New-Horizons-spacecraft-spotted-hydrogen-wall-Solar-System.html
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Offline Rhino

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #10 on: December 11, 2018, 07:07:24 am »
Do you think the engineers that built it ever imagined that it would still be communicating 41 years after launch?

Offline fartymarty

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #11 on: December 11, 2018, 09:15:41 am »
So when do we get to call it V'ger? (or V'Ger, if you prefer)




...so, Voyager II was launched 16 days before Voyager I? 
Must be remnants of the failed "New Math" from the 60's still in our space program in the 70s. :)


Offline gPink

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #12 on: December 11, 2018, 04:37:23 pm »
All is well with the world now.. :thumbs:   Hopefully they won't run into that wall that surrounds our solar system as they won't have enough time to brake.


Does that wall keep aliens out?
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Offline VirginiaJim

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #13 on: December 11, 2018, 06:18:29 pm »
Doesn't appear so based on numerous sightings throughout our history.
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Offline gPink

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Re: Voyager 1 & 2 still alive and kickin.
« Reply #14 on: December 11, 2018, 06:50:13 pm »
Must have left that big beautiful door open.
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