９７―１ Technology level 
Level １ To capture the signal emitted of the alien advanced than humanity.
Level ２ We also emit signals, and communicate with the aliens.
９７−２ Communications content: What should tell?
○Important is to transmit the idea.
○The idea to be transmitted
１ Communication technology
２ Achievements of mathematics and physics
３ Cosmology and Intelligence Theory
９７−３ Dyson sphere！(October 2015)  
○One theory for an advanced alien race is that they might harness the power of an entire star.
○In addition, it is possible to know the direction of technology development.
○KIC 8462852, located 1,480 light-years away, has produced a series of bizarre light fluctuations researchers cannot explain, so this looks like a Dyson sphere.
※Image of a Dyson sphere 
○However, the communication with KIC 8462852, located 1,480 light-years away, takes 3, 000 years.
○It is estimated that while the space travel by Dyson spheres or Starship Intelligence bodies would contact with other one if necessary.
☆You will meet the person you needed if you progress.
1. Search for Extra-Terrestrial Intelligence (SETI) - Wikipedia
2. Gravitational wave - Wikipedia：
3. MARK PRIGG FOR DAILYMAIL.COM(October 2015)
4. Mark Prigg “Have researchers discovered an alien MEGASTRUCTURE? “at Mail Online 20151014