Messages From Earth Beamed to Alien World
Written by Nancy Atkinson
The powerful opening scene of the movie "Contact" portrays radio and television signals from Earth heading out into space. Then later in the film, shockingly, one of those signals — a televised speech by Adolf Hitler — is beamed back as a reply. Could that really happen? Could an alien civilization "find" us from our inherent noise? Or, if we want other intelligent life to know we're here, will we have to take a more proactive or aggressive approach? Perhaps we'll find out. Today, messages from Earth were beamed specifically at an alien world considered capable of supporting life, the planet Gliese 581c, a "super-Earth" located approximately 20 light years from us. The social networking site Bebo sponsored a competition for young people to share their views and concerns of life on Earth, and the winners' messages were transmitted this morning from a radio telescope in Ukraine. Bebo was assisted by Dr. Alexander Zaitsev, who says the only way alien civilizations might find us is if we specifically make ourselves known.
501 photos, drawings and text messages were translated into binary format and beamed through space in a four and a half hour transmission by the huge RT-70 radar telescope in Evpatoria, Ukraine, normally used to track asteroids.
The transmission started at 0600 GMT on October 9. Oli Madgett, from the media company RDF Digital who came up with the idea, said the message "passed the Moon in 1.7 seconds, Mars in just four minutes and will leave our Solar System before breakfast tomorrow". The media company footed the $40,000 (£20,000) bill for the transmission.
The message should reach the Gliese system by about 2029. Any reply to the messages probably wouldn't reach Earth for 40 years.
Bebo's intent was to raise awareness for the concerns that young people have for the future of Earth, and to generate interest in space exploration. Bebo spokesman Mark Charkin said, "A 'Message From Earth' presents an opportunity for the digital natives of today… to reconnect with science and the wider universe in a simple, fun and immersive way."
Dr. Zaitsev was a consultant for the project, and is one of the world's experts in interstellar radio communication and is Chief Scientist of the Radio Engineering and Electronics Institute, at the Russian Academy of Science. His early work helped design and implement radar devices to study Mercury, Venus and Mars and Near-Earth asteroid radar research. Lately, he has focused on interstellar radio messaging, and what he calls METI – Messaging to Extra Terrestrial Intelligence.
"The leakage is of commercial television radio is much weaker than coherent sounding radar signals, such as the Arecibo Radio Telescope or the Goldstone Solar System Radar," Zaitsev told Universe Today. "The leakage is weakly detectable against a background of solar radio emissions. I do not say that any imaginable super-aggressive and powerful civilization cannot detect our leakage, however."
Update 10/10: Zaitsev added that the idea of the A Message From Earth internet project was developed in 2002 from his abstract Project METI@home: Messages to ETI from home,
(in English), and (in Russian). End of update.
As opposed to SETI, the Search for Extra Terrestrial Intelligence, METI takes a more proactive approach. In his paper "Making the Case for METI," Zaitsev and two colleagues wrote, "It is possible we live in a galaxy where everyone is listening and no one is speaking. In order to learn of each others' existence - and science - someone has to make the first move."
Zaitsev has been involved in several deliberate transmissions to space in hopes of making contact. "Otherwise," he said, "centers of intelligence are doomed to remain lonely, unobserved civilizations."
METI, as well as the Bebo project, takes a complete opposite approach from the recently formed WETI - Wait for Extra Terrestrial Intelligence.
Source: BBC
Filed under: Extrasolar Planets, SETI
October 10th, 2008 at 6:38 am
"As opposed to SETI"
don't you mean "In contrast to SETI"?
October 10th, 2008 at 6:48 am
I'd like to know what will happen if an object like a meteorite or some other dense material is in the path of the signal. Will it bounce it back to earth?
October 10th, 2008 at 6:59 am
What a bunch of wussies the human race has become.
You think hiding under your beds is going to keep you safe from the rest of the Cosmos?
People are going to keep transmitting into space and one day one of those signals is going to hit someone or something that can and will respond.
Will we be ready, or will be too busy sticking our heads in the sand?
If advanced aliens want to destroy us, there is nothing we can do about it. But if we learn who and what is out there first, it might make all the difference between our survival or extinction.
So wake up, grow a pair, and get out there before it is too late for us!
October 10th, 2008 at 9:43 am
Does that thing get HBO?
October 10th, 2008 at 4:03 pm
Kongaman…"Either way, get ready for the galaxy, humanity!"
Huumm…or it wil be…"Either way, get ready for Humanity, galaxy!"?…Huumm…
October 10th, 2008 at 4:40 pm
Slow down everyone. I believe the RF signal sent to the Gliese system will have faded to practically nothing, regardless of commercial power availability, after a light year or two of travel. I wonder if Dr. Zaitsev would mind sharing his math calculations with us concerning the amount of RF in watts he started with and figured would actually reach the Gliese system after twenty light years of travel.
October 10th, 2008 at 8:40 pm
It has probably been asked: but might I also see these "501 photos, drawings and text messages were translated into binary format and beamed through space in a four and a half hour transmission by the huge RT-70 radar telescope in Evpatoria, Ukraine, normally used to track asteroids."
It would be interesting, even 'very interesting' to see what views of Planet Earth and humanity are chosen to represent the world we know and love and our siblings that we at best sometimes tolerate.
October 12th, 2008 at 11:50 am
I must agree to those who believe in caution. Our own history has shown even we are not kind to our own species when a techologically superior faction (like the Great Holocaust begin by Columbus) makes with people with least developed weapons and talent for warfare. I know we cannot do anything about the leakage of all the radio noise or the pollution in our spectrum that will gives us away but no, do not make it easier for invaders to find us. They just might come "To Serve Man" and it could be a cookbook.
October 19th, 2008 at 12:07 pm
Congratulations for the scientific bravery of Bebo and Dr. Zaitsev to continue the search for more knowledge about the universe, extraterrestrial potential habitable planets and the search for other forms of life and our future by sending out such messages.
Unfortunately, the community of refusal and fear against this search and messaging is growing, esp. in the U.S., a country daily spending more money for war than for science, nature and knowlege. Some of them even plan to establish laws against sending messages to extraterrestrial planets. If successful this would scientifically bring us back to the middle ages with respect to the technical and scientific possibilities of the future.
If more of the commentators to this article would be aware of the fact that (i) the probability of finding further extraterrestrial habitable planets of this galaxy is growing every day and (ii) these messages are the only way to find out anything about them and, thus, our past, our evolution and future as well as possible other forms of life, some of them would surely have reacted differently.
Can't human beings of this planet think of other forms of discovery than the one Columbus and esp. other discoverers (and also the church) did some 500 years ago or ongoing invasions like, e.g., in Irak ? In times of Alfonso El Sabio in Spain, all people and religions peacefully lived and acted together, thus, why always thinking of the "worst case". We would have been stuck to the times when the curch refused to see, observe and accept that we are not living in the centre of the universe but still fight for views such as the Earth being a huge plane and murdered those continuing.
Science and human knowledge will and should never stop discovering the origins, even if this means that such way will be problematic.
I hope once we will discover extraterrestrial inhabited planets and/or other civilizations, even our world, the Earth, will become more peaceful.
Clear skies.
October 20th, 2008 at 9:50 pm
I am still a little confused why the messages are not sent by light wave which is faster than radio. A high powered laser could beat that message there. Are we checking all bands of light for messages. Is it posable that certain light may not penitrate our atmospere and carey encripted messages to look like noise..
It would seem that we steared away from light waves until fiber optics came along.
I might hope we are not alone with the pursuit of science.
October 21st, 2008 at 6:08 am
They both travel at the same speed as they're both part of the E-M spectrum. Different wavelengths.