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Google celebrates 44th anniversary of the message Arecibo, first interstellar radio message from humanity sent by researcherswith a doodle.
What is the message Arecibo?
The content of the original Arecibo message explained. (Image: phl.upr.edu)
The Arecibo message, sent from the Arecibo Observatory by a group of scientists from Puerto Rico in 1974, was a three-minute message containing exactly 1,679 binary digits, organized in 73 lines of 23 characters per line (these are two prime numbers that can help the extraterrestrials to decode the message).
Written with the help of Carl Sagan, the message itself could be placed in a rectangular grid of 0s and 1s to form a pictogram representing fundamental facts of mathematics, human DNA, the planet Earth's place in the solar system and the image of a human figure as well as the telescope's image itself even.
Arecibo's message was intended for the group of Messier 13 globular stars, 25,000 light-years away, in an attempt to contact extraterrestrial intelligence.
Google celebrates the anniversary of the Arecibo message with a doodle.
The show was particularly powerful because it used the Arecibo megawatt transmitter connected to a 305 meter antenna. The latter concentrates the energy of the transmitter by radiating it in a very small part of the sky.
What was the motive behind sending the message?
This historical transmission aimed to demonstrate the capabilities of the recently modernized Arecibo radio telescope, whose Its 1,000-foot diameter antenna made it the largest and most powerful antenna in the world at the time.
Aerial view of the Arecibo observatory. (Image: NAIC / Arecibo Observatory / NSF)
"It was strictly a symbolic event, showing that we could do it," said Donald Campbell, a professor of astronomy at Cornell University, who was a research associate at the Arecibo Observatory at the time.
Nevertheless, some of those present were moved to tears.
The message was designed by a team of researchers from Cornell University led by Dr. Frank Drake – the astronomer and astrophysicist responsible for Drake's equation.
"What could we do that is spectacular?" Drake remembered. "We could send a message!"
Drake equation
A way to estimate the number of planets harboring extraterrestrial life in the Milky Way galaxy.
In how many years will the Arecibo message reach?
The heart of M13, the large cluster of Hercules. (Image: ESA / Hubble and NASA)
Since the message Arecibo will take about 25,000 years to reach its destination (A group of 300,000 stars in the Hercules constellation, known as M13), humanity will have to wait a long time before receiving an answer, explained Google.
But how long?
In the 44 years since its transmission, the message has traveled only 259 billion kilometers, only a tiny fraction of the approximate 146 965 638 531 210 240 of its final destination. At the same time, our understanding of the cosmos has grown by leaps and bounds, raising the hope that someone can listen and listen.
Also read | 7 Reasons NASA Grants $ 7 Million to Discover Alien Life
Also read | Extraterrestrials contact us and we probably miss messages!
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