Yes, to a certain extend. NASA spacecrafts Pioneer 10, Voyager 1 and 2 are a kind of robots sent outside the solar system and having messages on board for anybody who ever will find them. Applying the theorem "If we can do and did, other can as well" it might theoretically possible that a kind of Pioneer 10 already came close to or even crossed the solar system. Just, that we would not have noticed because we are not able to detect this kind of spacecrafts unless they are very, very close to Earth and we have a lot of luck.
The trouble is the traveling time. Pioneer 10 heads in the general direction of Aldebaran, the brightest star in Taurus (can be clearly seen without any telescope in Northern winter). Aldebaran is just 86 lightyears away, that is close neighbourhood in terms of astronomy. Pioneer 10 will arrive there in about 2 million years. NASA did not provide Pioneer 10 with any kind of transmitter "phoning home" and giving us any notice if found. Reasons are obvious I guess.
Of course Pioneer 10 and the Voyager spacecrafts are traveling at low, non-relativistic speed, in fact they move ballistical (without any further acceleration, just following gravity). Sending a spacecraft with a robot we might want to speed up things a little and provide the craft with a higher speed. Now, the trouble then is that we need a lot of fuel and fuel to payload ration gets very, very bad, although then the robot would not have to live forever due to dilatation of time. However, travel time will remain a mayor problem because even if traveling close to speed of light would take a little more than 100 years to send any robot just to this close neighbourhood and another 100 years for any transmission to be received. And it would cost a tremendous amount of money, so that many, many people on Yahoo Answers would ask "Is it worth this?"
2007-12-26 22:06:47
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answer #1
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answered by map 3
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If we ever encounter evidence of ET intelligent life, I think the chances of it being in the form of some remote, robotic probe are far greater than the chances of running into the beings, themselves. The technological sophistication of such probes covers a wide range of possibilities, from simple, long-dead probes of the Pioneer or Voyager types, or working robots which might be capable of independent activity. No robot could live forever but some might be capable of functioning for the time periods that would be required for interstellar travel.
I believe the most likely way we will discover other life is by detecting a radio signal of some type.
We can't just assume we will ever discover such life, but if we do, I think these represent the relative odds regarding the type of contact.
99.99% EM transmission of some sort.
0.009999999 % Robot or probe.
0.0000000001 % Live beings.
2007-12-26 22:07:34
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answer #2
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answered by Brant 7
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There's a very high possibilities that there are other highly evolved intelligent beings out there. And yeah, they may even build their own robot
but imo, the chances of them visiting Earth is very rare, next to none. The universe is so huge that they cannot just simply go scouting around for other life form. They must be able to have a technology that can tell them where in the universe exist other life form for them to pay a visit.
2007-12-26 21:00:03
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answer #3
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answered by Anonymous
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In a seemingly infinite universe such as ours, many things are possible. Do I believe based on my knowledge of things that there has been/is/will be intelligent life other than on Earth? Yes. Robots from the past? Perhaps, that one is a little more of a stretch...
2007-12-26 21:44:22
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answer #4
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answered by Mike J 3
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1. yes, the robots will visit us.
2. There is intelligent life in the universe.
2007-12-26 20:35:56
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answer #5
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answered by liquidicy 3
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Yes to the question is it possible there is other life in the universe and we will never know it,;
No to any robots visiting or built by another civilization,
Happy Holidays;
SG
2007-12-26 21:28:48
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answer #6
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answered by SPACEGUY 7
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very improbable. The alien civilization would be long gone before they could get any information back. Is this some kind of practical joke? I don't think the universe has existed for that kind of intelligence to have both evolved and sent robots anywhere near here.
2007-12-26 20:39:30
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answer #7
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answered by Anonymous
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It is possible that other beings have created satelites or robots but the question is would they have directed them at our planet? Because with the time frame nothing might have existed here at the time they went by. See Venus might have had life 3 million years ago, but it is so cluttered with carbon dioxide/monoxide and hot, that we can't land satelites on it to find out. But if nothing was on earth, they might not have explored it if they had the option, and passed by it. So in short, robots might have sent but passed us millions of years ago in search of life. Like we're doing now.
2007-12-26 23:53:23
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answer #8
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answered by Living In Fast Forward 4
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Yes, it's possible. Well of course, the robots couldn't live forever, but they could live for a very long time. However, for the robots to arrive now, they would have to have been sent a very long time ago, so that civilization would have to be wayyyyy ahead of us. So is it possible, yes, but is it probable, no. Very very unlikely.
2007-12-26 20:35:20
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answer #9
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answered by Anonymous
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its like watching "The Simpsons"
If you tell Homer "Its possible they built a donut shop on the other side of Flanders' house." He will undoubtedly get all excited and run over there to check.
Makes you feel bad when he finds out there isnt one, but you only said it was POSSIBLE... its not like you were lying.
"Hey, Homer, its POSSIBLE that in the 30 seconds since you checked last that they built that donut shop."
There he goes again.
2007-12-26 21:51:56
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answer #10
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answered by Faesson 7
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