Scientists Decode the First Message From an Alien 
Civilization... 

Simply send 6 x 10^50 atoms of hydrogen to the star system 
at the top of the list, cross off that star system, then put your 
star system at the bottom of the list and send it to 100 other 
star systems. Within one-tenth of a galactic rotation you will 
receive enough hydrogen to power your civilization until entropy 
reaches its maximum! IT REALLY WORKS!