The phrase "alien message" is correct and usable in written English.
It can be used in contexts discussing communication from extraterrestrial beings or metaphorically to describe something that feels foreign or unfamiliar.
Example: "The scientists were excited to decode the alien message received from deep space, hoping it would provide insights into extraterrestrial life."
Alternatives: "extraterrestrial communication" or "foreign message".
His Master's Voice, published in 1968, deals with the possibility of communication with an alien civilisation, telling the story of a secret project to decode an alien message which ends in failure.
Seti's policy, once it is fairly sure that an intercepted signal is an alien message, will be to share it openly to allow people all over the world to try to understand it.
But just because something isn't an alien message or Ringworld doesn't mean it can't be interesting science.
Some people report picking up terrifying alien messages from blank TV screens.
Such projects have become quite common, attracting millions of volunteers to endeavors like scanning radio-telescope signals for alien messages and cracking codes.
After that, Snowden said, alien messages would be so encrypted that it would render them unrecognisable, "indistinguishable to us from cosmic microwave background radiation".
On internet message boards – generally the preserve of those who would otherwise be sitting around wearing caps made out of tinfoil to stop alien messages coming from the microwave – there was an outcry.
Inside, viewers can relax on sofas and watch an old-fashioned TV screening Hiller's video of the same name, a landmark work that was first broadcast late at night on Channel 4. It shows a flickering fire and its soundtrack includes eerie ritualistic singing and a whispering voice reading newspaper reports of alien messages broadcast on domestic TVs after closedown.
While no alien messages have been discovered yet, the project's success in using the Internet to assemble an impromptu grass-roots supercomputer is inspiring other researchers to turn to the masses for problems requiring more computation than they could otherwise afford.
It's understandable that to make sense of alien messages, some pretty advanced deciphering technology might be required.
Yet nearly 60 years after Project Ozma used a radio telescope to search the universe for alien messages for the first time, we have yet to find any evidence that we're not alone.
