Voyagers Surpass 10,000 Days Of Operation

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PostPosted: February 3, 2005 2:12 PM 

Voyagers Surpass 10,000 Days Of Operation

The intrepid twin Voyager spacecraft, launched about two weeks apart in the summer of 1977 and now heading out of the solar system, continue making history. On Jan. 5, 2005 the Voyager team noted a milestone with a nice round number: 10,000 days since Voyager 2's launch. On Jan. 21, 2005 Voyager 1 also passed 10,000 days.
Source : NASA

Now it is at the edge of our solar system nearly 9 billion miles from the sun !!

Sound from a solar blast wave hitting the edge of heliosphere:

explanation :

Read more about this fantastic mission at



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PostPosted: February 3, 2005 3:14 PM 

How long will they survive? To 2020 NASA says, but will this be enough time to leave the solarsystem? Anyone else with an opinon about that?


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PostPosted: February 3, 2005 3:43 PM 

I find it interesting that the Voyagers (and Pioneer, as I vaguely recall) are inexplicably slowing down more than they should as they get further away from the sun.. New law of gravity, mysterious heretofore undetected heavenly body, or something less obvious?


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PostPosted: February 3, 2005 9:19 PM 

Great thread.

I absolutely love reading anything about the Voyager(s) or Pioneer(s) --- they bring back a great deal of childhood memories. Truly hard to believe they are still producing such solid science decades after being launched. Very Happy





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PostPosted: February 3, 2005 9:20 PM 

Whoops stuck a .gif in there...


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PostPosted: February 5, 2005 1:01 PM 

As the spacecrafts advanced in our solar system, the story they where telling us,
I followed that mission the best I could do over 20 years ago.

But there was a sparse coverage in the media, but I was reading many scientific magasines
about the mission.

And now...
Today with the Internet, and that wealth of information we can capture it is great
to follow the science and exploration in space.
And not to forget a forum where we can share and discuss our opinions and experience.
Thank you Mark Carey and Richard FMR !

As you said ups : "Truly hard to believe they are still producing such solid science decades after being launched."
Yes, it was really a big engineering craft and effort to make a such spacecraft.

After some Goooooogling I found this from

Voyager 1 was originally planned as Mariner 11 of the Mariner program.
From the outset, it was designed to take advantage of the then-new technique of gravity assist.
By fortuitous chance, the development of interplanetary probes coincided with an alignment of the planets
called the Grand Tour. The Grand Tour was a linked series of gravity assists that, with only the minimal fuel
needed for course corrections, would enable a single probe to visit all four of the
solar system's gas giant planets: Jupiter, Saturn, Uranus, and Neptune.
The identical Voyager 1 and Voyager 2 probes were designed with the
Grand Tour in mind, and their launches were timed to enable the Grand Tour if desired.

Here is a streaming video I'd like to share.
You must have Real Player ( [link] )
installed to your system.

and now the video ...
Voyager The Grand Tour.


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PostPosted: March 11, 2005 7:57 AM 

dont know why it would cost so much to operate...a few days a year set aside to catch a signal then go back about your normal task...or at least combine a department to monitor old space probes that are still working. instead of junking them.


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PostPosted: May 23, 2006 2:35 PM 

Slide show from JPL

"In mid-2006, Voyager 1 will be more than 9 billion miles from the sun. Voyager 2 will at a distance of 7 billion miles. Both craft are healthy and continue to send data back to Earth. In the next ten years, scientists expect the Voyagers to cross the heliopause, the edge of the bubble created by the sun's supersonic wind, and become the first craft to reach interstellar space."

Aldebaran Author Profile Page

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PostPosted: May 27, 2006 6:31 AM 

I don't know if this will work, but here goes:

Distance from Sun (AU)
Pioneer 10: 90.698
Pioneer 11: 71.431
Voyager 2: 79.690
Voyager 1: 99.242
New Horizons: 2.244

Speed relative to Sun (km/s)
Pioneer 10: 12.158
Pioneer 11: 11.564
Voyager 2: 15.579
Voyager 1: 17.140
New Horizons: 28.552

kevin McNulty

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PostPosted: May 31, 2006 4:53 PM 

Went to the science museum on Monday and re-aqainted myself with the Command and Lunar Module. By god did that bring some memories back, looking at that simple technology it put man on another world! I was so amazed and now we are hitting outer limits like this. I will only see and experince these unmanned vehicles go so far beyond our known environment. Why don't we launch now for Centauri?

Aldebaran Author Profile Page

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PostPosted: June 1, 2006 8:32 PM 


Yes, those were the days. Never been lucky enough to visit the science museum, but I have visited the Musée de l'Air et de l'Espace at Le Bourget, Paris.

My main thoughts after seeing some of the capsules (mainly Russian) were - "Boy, these guys were brave being launched in these glorified dustbins" . The capsule that Yuri Gagarin was launched in, had captions in various world languages instructing passers-by on how to release the occupant.

When you think about it, the the Apollo Astronauts had less computing power than a modern day PDA to land on the moon, but they did it incredibly well. It speaks volume for the courage and determination of the day.


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PostPosted: June 2, 2006 4:44 PM 


As a scientist, you know very well we are only as good as the dawn of the day. Those tincans were the best life support systems available. Those early astronauts would surely come home. A brave lot they were.

Just think what we can now produce for the future of space travelling man. However, it will be outdated too.

All I really, really want is gravity in the craft, and we are away.

As the Lone Ranger said to Trigger as he reared high in the sunset on every show..'Away Bigboy'.

He had it all, and he knew it.


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