Physicists call for alien comm protocol

 
Three astrophysicists suggest creating a protocol for contacting aliens.

No need to re-invent the wheel. We mustn't forget that Hans Freudenthal made an excellent plan for handling this in his book Lincos: Design of a Language for Cosmic Intercourse (1960). The English Wikipedia article on Lincos is a bit crappier than the German article.

update: Holy cow, I just discovered that Lancelot Hogben devised a protocol for communicating with aliens called Astraglossa.