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Farthest Man made object

   voyager is a space craft that is now abo 25-Aug-02 biruwa
     Yes, it is. But it would be very interes 25-Aug-02 Suman


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biruwa Posted on 25-Aug-02 04:28 PM

voyager is a space craft that is now about 12 light hours away. To know how far that is let's compare that with our Sun. Sun is 8 light minutes away from Earth.

Read more about it at http://voyager.jpl.nasa.gov/

or at http://voyager.jpl.nasa.gov/science/Vgrlocations.pdf
Suman Posted on 25-Aug-02 09:07 PM

Yes, it is. But it would be very interesting to know the details of the spacecrafts rather than the stories. like how powerful the transmitters were, how you can verify the signals. There are a lot of people out there to decode them for the scientific communities and amateurs like you!
Now a days they can predict the future paths of the spacecrafts. They obviously are just going like any other objects in space or are autopiloted (at this distance no human device exists to manually control the system from the Earth and will not for thousands of years to come). Autopiloting is ruled out because it is in the dark (no battery to support the engines if not on nuclear power), and I don't think they have nuclear powered engines, but NASA knows it better. Well the crafts might have batteries for infinite time when it was launched but looking at the success rates of space flights it is very very doubtful.
Heck let us assume the crafts don't have enough fuels from Earth. Then I wonder how is it sending "signals"?
There are many more questions which can be easily raised and very difficult to answer.