An exact meaning of “Alien Message” refers to a signal or communication received on earth from a potential extraterrestrial civilization. It might be a radio wave or signal, a binary code, or any other types of information intended to convey a message from another planets or solar system or even it might be from galaxy.
If aliens sent us a message, a new mathematical approach could reveal the number and size of the message’s dimensions. Mathematics can be a very powerful tool for analyzing the structure and finding an alien message. But it may not be sufficient to decode the full meaning or understand the culture and the nature of such messages.

Mathematics is the language of universal symbols and principles that can serve as a foundation for communication between different civilizations. If aliens use a mathematical system for their language similar to ours, we could start from the point of their message.
Mathematical analysis can help us to identify patterns and structures of the message, such as repeating sequences and series, mathematical relationships or geometric arrangements, if a message is transmitted using a specific number system, mathematics can be used to discover its real meaning of such messages.
Suppose, if aliens any part in the universe send a message to Earth, and we can’t understand what they’re saying? The communication with another species is likely to be tricky, given how difficult it already is for humans from one culture and language to be understood by those from another culture. So, it can be very hard it be to bridge the gap between us and creatures whose bodies, minds and habitats are completely foreign to ours?

To ponder the question and practice decoding an extraterrestrial epistle, an artist-led team has created a mock message from the stars to test us, Earthlings. On May 24 the ExoMars Trace Gas Orbiter beamed the note from Mars toward Earth. Three observatories detected the transmission 16 minutes later: the Medicina Radio Observatory in Bologna, Italy; the Allen Telescope Array in northern California; and the Robert C. Byrd Green Bank Telescope in West Virginia. The message, though written for humans by humans, was as non-anthropocentric as one could hope for, perhaps the most alien missive the world had ever received.
Only three people in the world know what A Sign in Space’s message means. First among them is Daniela de Paulis, the project’s founder and an artist in residence at the SETI Institute (SETI stands for the search for extraterrestrial intelligence) and the Green Bank Observatory. She and two other co-authors penned the faux alien missive after consulting with poets, scientists, programmers and philosophers.
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It will take some time, because it requires people with different expertise to collaborate with each other, which was really the objective of the project. An extraterrestrial message would belong to all humanity, so we should all have the ability to contribute to its interpretation.