If EARTH has been sending signals into space to contact other life, do you think SECRETLY somone has rsponded?
436439
cough.... area 51 ...... cough..... roswell...... cough cough......
281369
I also think that it would be very small-minded to believe that we are the only intelligent life in the vast expanses of outer space, moreover, i think that its not a matter of IF we meet being from somewhere else, but WHEN we meet them, sooner or later were gonna cross paths.
1101732
Yes, there are aliens among us.  It is difficult to spot them because they can hide themselves by reflecting light.  Our human vision is very limited in the spectrum of light.  They utilize the light we do not see to hide themselves like their space crafts.  They are here to help us in our quest to evolve.  Governments and disinformation specialist's have placed fear about space visitors.   That is why they will not show themselves until we are ready to accept them.  They are our cosmic family beyond our planet.  Are we ready to take the next step?
748593
There is no evidence that alien species from other worlds or other galaxies have ever visited Earth. The examples given have all been debunked by numerous scientists. We'd like to believe there is life out there, but we haven't heard from anyone yet. Because the distances are vast -- measured in hundreds of thousands of light years -- it is more likely that we would have radio or television transmission, which travels at the speed of light, than a visit in person. Maybe they're listening to our TV broadcasts and don't think we're intelligent enough to contact.
176434
Radio signals are probably the only way and that is a slim hope. Most people can comprehend that there are plenty of opportunities for life to evolve elsewhere in our universe(it may even be quite plentiful). What most people don't grasp is the sheer magnitude of the distances between these other worlds. the next closest star is Sirius and travelling at the speed of light it would take 4.3 years to traverse the distance between here and there! Oyher stars are at MUCH greater distances. So I am afraid that the only contact we will ever have with an extra terrestrial race is by radio waves and even that is unlikely.
599329
A resounding YES! The reason we haven't met them is quite obvious, really. The incidents of life as we know it are so far apart that it would take more time for them to reach us or for us to reach them than any given life form in the universe has. In other words, we will all die and all trace of our existance will be long gone by the time any other beings got here. Take it from an alien!
20141
Perhaps we would preceive them as we do aliens and UFOs today....people want proof...they can't always have it...eventually we will be awaked to the reality of the universe and our existance here..just give it time..our primitive thoughts can't yet understand our existance.
746511
Dear Sir:\n\nWhile there have been some actual transmissions from Earth to the Solar System seeking echos, and some of this might still be going on in a coordinated fashion, as I understand it, the primary mission of the existing radio telescopes is to "Listen" to upper wavelength radio emissions from gas clouds, and other phenomina in the universe. Of course, once some interesting\nradio emissions are detected, a full spectrum scan of the target is most likely conducted to determine the full extent of radio\nsignals from that source.\n\nOther radio transmissions are made from Earth to our traveling Space Probes and Robotic Explorers at various locations in the Universe. A continual litany of telemetry, television and voice signals also flows between the Space Station and Ground Control Center to keep a constant watch on the health, status, and activities of the space crew, mission, and the station itself.\n\nI will defer to someone from one of those positions for an\nanswer as to the power and frequency of transmissions from Earth to the Space Station, Earth to the Robot Explorers, and Earth to the existing Space Probes way out in deep space.\nMy guess is that these various transmissions take place on frequencies between 2,500 Mhz and 40,000 Mhz. That is a \nvery large radio spectrum. \n\nSince my response turns around your question, in that I am telling you that the biggest radio telescopes listen rather than\ntransmit, let me also tell you that the biggest radio telescopes are not simply single structures at a given location. In recent years a scheme for the linkage of two or more radio telescopes was developed. Therefor, the biggest radio telescope would be an electronic combination of the signals from most of the largest installations on Earth. A lot of work has been done in that vein in recent years. Using more than one receiving antenna provides an easy means for researchers to filter out local ground (earthbound) noise generators and radio disturbances. Signals heard at the same time by widely separated receiving antennas (and equipment) are most probably from the sighted target source (assuming both antennas are aimed at the same target). It is also interesting to know that the radio signals that are received require a vast amount of processing to be identified and detected. The processing of the radio telescope incoming signals takes a huge array of computers and some very complex software programs to yield useable data.\n\nYes, radio waves do go on forever. However, their strength at the point of interception decreases by the square of the distance from the source. So, the strength of radio waves become very, very weak as you move into distances like 100,000,000 miles.\nThe wave front would continue out like rings of water in a pond until they hit something and bounced back off of it. In that sense,\na portion of the radio wave would not go on forever, but would become a new wave moving in the oposite direction from the new source (which was the object that the wave struck). The\nrest of the wave front would continue on until it struck something, and we repeated the above scenario. The exact same thing happens to signals transmitted from a sonar transducer in the water. Those devices are used to detect the depth of the bottom of rivers/oceans (depth finder), fish in the water (fish finder), or even other vessels (sub hunting). Sonar, uses sound waves and not radio waves, but the principle is almost the same.  Sound waves radiate out. Nearby echos are strong enough to be detected with existing equipment and are plotted and displayed on information screens. Some echos are so weak coming back that the existing equipment cannot detect/plot/or display  them.\n\nRegards,\nZah
5535
No..but if you are lucky enough to actually witness their technology..: UFO/disc/sphere/..etc..it certainly closes any doubt involving the questioning of the existence of extraterrestrials. I have been witness several occasions..day and night to objects in the sky..I certainly wasn't looking for them..I just happen to look up at the right times..but perhaps in the near future if we are lucky ..we can get more governments throughout the world to come clean..and fill us in..on what many believe and some even know...that we are not alone..here or the universe
355868
This is an interesting issue for astronomers and exo-biologists. There is no way of knowing how an extra-terrestrial species will communicate with each other. We may find some clues on our own planet by studying birds, dolphins, chimpanzees, etc.\n\nSteven Speilberg proposed the possibility of music being used as mode of communication in "Close Encounters of the Third Kind."\n\nRead the book "The Cosmic Connection" by Carl Sagan, in which Sagan discusses this topic in great detail. He talks about all the problems we may face, and he even writes about the possible problems with the Gold plaque he designed for Pioneer 10. It's a very well designed plaque featuring a man, a woman, a hydrogen molecule, the location of planet within the solar system, and the location of our system in relation to several other stars. \n\nAmong the possible problems: Will an alien understand that the little circles represent planets? Will an alien understand that the star-map on the plaque represents a three-dimensional space? What if, like bats, the aliens communicate by sound alone - will the aliens even have necessary biology to be able to SEE the drawings on the plaque?
70992
Yes.  Because every once in a while the authorities come through and take all the illegal aliens that are picking oranges back to Mexico.  Then the grove owners hire the new batches that come in.\n\nAs far as aliens from space?  Yes, they are up there, no they are not making crop circles and coming all this way just to contact the government by crashing into fields near military test sites. I really hope they'd have something better to do after traveling so many light years in a spinning dish.
133292
The US government will tell the truth about contact with extraterrestrials when it actually happens.\nNow go put your tinfoil hat back on.
611976
Definitely.  Even if its just some microbes out in space, just the sheer number of planets and stars etc I would think there would have to be other life out there!
421019
i'm not saying there is no aliens and i'm still not saying they are aliens but if there are aliens with techs more advance than that of ours, then they would be coming here for visits time to time. If they are at the same techs with us then we would be able to pick up their signals long time if they was there. so my guess is it's a mystery or maybe they are still in their stone age but if that was the case then we would be picking up there signals from since long time.
1176263
Right now NASA is looking for the Unknown. \n\nI mean Come on!  \nIf we told you more it wouldn't be Top Secret.
664239
we will never know whats going on out there if we dont explore it.\nmaybe there is aliens out there who would want to communicate with us or there may be some asteroid out there that is going to hit the Earth in near future.
337121
yes.\nSome very clever people managed to teletransport a photon of light from one side of a lab to the other. But dont get your hopes up being able to transport people between starships and the planet they orbit.....