Earth Will Receive an 'Alien' Transmission From Mars This Week - Gizmodo

Run don't walk to help.
Sorry this information is late, but Panzer just found it. You'll need to hurry. Today is the day the message will be transmitted. The project is called Sign in Space.

According to George Dvorsky's post, a coded message is being sent to earth from the European Space Agency's TGO at 3:00 ET. You can participate in helping decode it. 
Go to the link below and watch the video about the experiment.
To read the post tootle over to Sign in Space